Adjectives With Prefixes

Unhappy

Definition: Feeling sad or dissatisfied; not happy.

• She felt unhappy about her grades this semester.
• He was unhappy with the decision made by the team.
• The film's ending left many viewers unhappy.

Unhappy in a sentence

Unfair

Definition: Not just or equitable; lacking fairness.

• It is unfair to compare her to others.
• He thought the rules were unfair.
• The decision seemed unfair to the players.

Unfair in a sentence

Unkind

Definition: not friendly or generous; harsh

• It was unkind of him to say that.
• She felt unkind remarks were unnecessary.
• His unkind behavior affected her feelings.

Unkind in a sentence

Impossible

Definition: Not able to be done; not feasible or attainable.

• It seemed impossible to finish the project on time.
• He believed anything was possible, even the impossible.
• The task was difficult, but not impossible.

Impossible in a sentence

Incorrect

Definition: not accurate or wrong

• The answer was incorrect, so he tried again.
• She realized her information was incorrect.
• The teacher marked the incorrect answers on the test.

Incorrect in a sentence

Unusual

Definition: Different from what is normal or expected; rare.

• The weather this winter has been unusual.
• She wore an unusual dress to the party.
• Understanding unusual events can spark curiosity.

Unusual in a sentence

Incomplete

Definition: not finished or lacking some parts

• The assignment was incomplete and needed more work.
• Her puzzle was incomplete without the last piece.
• He submitted an incomplete report.

Incomplete in a sentence

Disloyal

Definition: Not faithful or loyal; treacherous.

• His disloyal actions hurt his friends.
• She felt disloyal for not supporting her teammate.
• Being disloyal can damage relationships.

Disloyal in a sentence

Dishonest

Definition: Not truthful; deceptive or fraudulent.

• He was dishonest about his homework.
• Dishonest behavior can lead to serious consequences.
• Understanding dishonest actions helps in character development.

Dishonest in a sentence

Nonviolent

Definition: Characterized by the absence of violence; peaceful.

• The protest was nonviolent and respectful.
• He believes in nonviolent methods to achieve change.
• They organized a nonviolent demonstration for their cause.

Nonviolent in a sentence

Antisocial

Definition: Avoiding social interaction; being withdrawn.

• He felt antisocial and preferred to stay home.
• Her antisocial behavior worried her friends.
• Some people can be antisocial in large gatherings.

Antisocial in a sentence

Unhealthy

Definition: Not conducive to good health; harmful to well-being.

• Eating too much junk food can lead to unhealthy habits.
• She learned about unhealthy lifestyles in health class.
• Unhealthy behaviors can impact physical and mental health.

Unhealthy in a sentence

Unhelpful

Definition: Not providing assistance or support; not useful.

• His comments were unhelpful during the discussion.
• She found the instructions unhelpful for the project.
• The unhelpful advice frustrated him.

Unhelpful in a sentence

Impolite

Definition: Rude or not showing good manners; disrespectful.

• It’s impolite to interrupt someone while they are speaking.
• He realized it was impolite to not say thank you.
• She found his impolite remarks very offensive.

Impolite in a sentence

Unwise

Definition: Not showing good judgment; foolish.

• It is unwise to ignore the advice of experts.
• He made an unwise decision by not studying for the test.
• Unwise choices can lead to regrettable outcomes.

Unwise in a sentence

Untidy

Definition: Not neat or organized; messy.

• His room was always untidy and needed cleaning.
• She found the untidy desk distracting while studying.
• Understanding untidy spaces can affect productivity.

Untidy in a sentence

Irregular

Definition: Not following a regular pattern; differing from the norm.

• Irregular verbs do not follow standard conjugation rules.
• The schedule has some irregular times this week.
• She noticed an irregular shape in the cloud.

Irregular in a sentence

Non-stop

Definition: Another spelling of nonstop; without interruption.

• He gave a non-stop performance that amazed everyone.
• The non-stop rain caused flooding in the area.
• They enjoyed a non-stop movie marathon on Saturday.

Overcooked

Definition: Food that has been cooked for too long and is no longer enjoyable; dry or tough.

• The steak was overcooked and hard to eat.
• She avoided overcooked meals by timing them carefully.
• He realized the pasta was overcooked when it fell apart.

Undercooked

Definition: Not cooked thoroughly; remaining raw or insufficiently heated.

• The chicken was undercooked and needed more time.
• She realized the pasta was undercooked and fixed it.
• Undercooked food can lead to health issues.

Unimportant

Definition: not significant or valuable

• The details in the report were deemed unimportant.
• He felt the topic was unimportant for the discussion.
• They decided to ignore the unimportant comments.

Unimportant in a sentence

Misbehave

Definition: to act badly or improperly

• The students were warned not to misbehave during the trip.
• He didn’t want to misbehave in front of his parents.
• Misbehaving in class can lead to consequences.

Misbehave in a sentence

Untrue

Definition: Not in accordance with fact; false.

• The rumor was untrue and caused confusion.
• He realized the statement was untrue after checking.
• Understanding untrue claims helps in critical thinking.

Untrue in a sentence

Unclear

Definition: Not easy to understand; vague or ambiguous.

• The instructions were unclear, leading to confusion.
• She gave an unclear explanation of the topic.
• Unclear signals can cause misunderstandings.

Unclear in a sentence

Nonverbal

Definition: Not involving words; communication through gestures, facial expressions, or body language.

• He communicated nonverbal cues during the presentation.
• Nonverbal communication is important in social interactions.
• She used nonverbal signals to express her feelings.

Nonverbal in a sentence

Irreplaceable

Definition: Something that cannot be replaced or is unique.

• Her grandmother's necklace is irreplaceable to her.
• The team member was irreplaceable due to his skills.
• They considered the artwork irreplaceable because of its history.

Irreplaceable in a sentence

Misbehaving

Definition: acting inappropriately or badly

• The misbehaving children were sent to the principal.
• She noticed the misbehaving students during recess.
• Misbehaving can affect your reputation.

Inappropriate

Definition: Not proper or suitable for a situation.

• His comments were inappropriate for the classroom.
• Wearing shorts to a formal event is inappropriate.
• She realized her behavior was inappropriate.

Inappropriate in a sentence

Untrustworthy

Definition: Not able to be relied on; dishonest or unreliable.

• She found him to be untrustworthy after the incident.
• Untrustworthy sources can spread false information.
• Understanding untrustworthy behavior is important for safety.

Untrustworthy in a sentence

Unresponsive

Definition: Not reacting or responding; inactive.

• The patient was unresponsive during the examination.
• He felt unresponsive to the teacher's questions.
• The device was unresponsive to touch.

Unresponsive in a sentence

Uncomfortable

Definition: Causing discomfort or unease; not pleasant.

• The chair was so uncomfortable that he couldn’t sit still.
• She felt uncomfortable speaking in front of the class.
• Uncomfortable situations can lead to growth.

Uncomfortable in a sentence

Irresponsible

Definition: Not showing a proper sense of responsibility.

• It was irresponsible to leave the door unlocked.
• He made an irresponsible decision that affected others.
• Being irresponsible can lead to serious consequences.

Irresponsible in a sentence

Nonessential

Definition: not absolutely necessary; optional

• The extra features are considered nonessential for basic use.
• She decided to remove the nonessential items from her bag.
• Nonessential tasks can be postponed if needed.

Nonessential in a sentence

Mismanaged

Definition: handled poorly or ineffectively

• The mismanaged funds led to serious issues.
• She was upset about the mismanaged event.
• Mismanaged situations often require intervention.

Disorganized

Definition: Not arranged in a systematic way; chaotic.

• His disorganized notes made studying difficult.
• She felt disorganized after the weekend.
• Being disorganized can affect productivity.

Disorganized in a sentence

Unproductive

Definition: not producing or achieving anything

• The meeting was unproductive and did not lead to solutions.
• He felt unproductive during the long day.
• Unproductive habits can hinder progress.

Unproductive in a sentence

Unbelievable

Definition: Difficult to believe; extraordinary or incredible.

• The magician performed unbelievable tricks during the show.
• His story was so unbelievable that everyone laughed.
• It seemed unbelievable that they had won the game.

Unbelievable in a sentence

Disinterested

Definition: Impartial; not influenced by personal feelings; unbiased.

• The judge remained disinterested during the trial.
• She gave a disinterested opinion on the project.
• Being disinterested helps in making fair decisions.

Disinterested in a sentence

Inconclusive

Definition: not leading to a firm conclusion; uncertain

• The results of the experiment were inconclusive.
• They had inconclusive evidence in the case.
• An inconclusive meeting left everyone confused.

Inconclusive in a sentence

Disproportionate

Definition: Out of proportion; unequal in size, amount, or importance.

• The response was disproportionate to the situation.
• She noticed a disproportionate number of students in the class.
• Understanding disproportionate effects helps in analyzing problems.

Disproportionate in a sentence

Unintentional

Definition: not done on purpose; accidental

• Her unintentional mistake caused confusion in the meeting.
• He made an unintentional error in the report.
• The unintentional consequences of his actions were serious.

Unintentional in a sentence

Nonchalant

Definition: showing a lack of concern or interest; casual

• He was nonchalant about missing the deadline.
• She responded in a nonchalant manner when asked about the test.
• His nonchalant attitude surprised everyone during the meeting.

Nonchalant in a sentence

Unorthodox

Definition: not conforming to rules or traditions

• His unorthodox approach to teaching was refreshing.
• She had an unorthodox method of solving problems.
• Being unorthodox can lead to new ideas.

Unorthodox in a sentence

Insatiable

Definition: Impossible to satisfy; always wanting more.

• She had an insatiable appetite for knowledge.
• His insatiable curiosity led him to explore many fields.
• The insatiable demand for new technology keeps growing.

Insatiable in a sentence

Unprecedented

Definition: never done or known before

• The pandemic caused unprecedented changes in society.
• They faced unprecedented challenges during the project.
• Understanding unprecedented events is important for learning.

Unprecedented in a sentence

Illogical

Definition: Not making sense; unreasonable or contrary to logic.

• His explanation was illogical and confusing.
• It seems illogical to ignore the evidence.
• She found his argument to be illogical.

Illogical in a sentence

Unambiguous

Definition: Clear and not open to more than one interpretation; definite.

• The instructions were unambiguous and easy to follow.
• He gave an unambiguous answer to the question.
• The unambiguous message was understood by everyone.

Unambiguous in a sentence

Dispassionate

Definition: Not influenced by strong emotion; objective.

• She provided a dispassionate analysis of the situation.
• Being dispassionate allows for clearer judgment.
• He remained dispassionate while discussing the topic.

Dispassionate in a sentence

Unyielding

Definition: Not giving way to pressure; firm and inflexible.

• Her unyielding determination helped her succeed.
• He had an unyielding belief in justice.
• Unyielding support can make a big difference.

Unyielding in a sentence

Unforgettable

Definition: Something that is very memorable or cannot be forgotten.

• The trip to the beach was unforgettable.
• She had an unforgettable experience at the concert.
• His speech was unforgettable and inspired many.

Unforgettable in a sentence

Impenetrable

Definition: impossible to pass through or enter

• The fortress was built to be impenetrable.
• The fog was so thick it felt impenetrable.
• His thoughts were impenetrable to others.

Impenetrable in a sentence

Inconceivable

Definition: impossible to imagine or believe

• It was inconceivable that they would win the game.
• The idea seemed inconceivable at first.
• Her response was inconceivable to everyone present.

Inconceivable in a sentence

Irrefutable

Definition: Something that cannot be denied or disputed.

• The evidence provided was irrefutable and convincing.
• Her points were irrefutable, winning the debate.
• He presented irrefutable facts about climate change.

Irrefutable in a sentence

Insurmountable

Definition: Impossible to overcome or deal with.

• The mountain seemed insurmountable to the inexperienced climbers.
• She faced insurmountable challenges but never gave up.
• They thought the problem was insurmountable until they found a solution.

Insurmountable in a sentence

Misaligned

Definition: not properly lined up; out of place

• The picture frame was misaligned on the wall.
• They fixed the misaligned wheels on the bike.
• Misaligned teeth can affect how you chew.

Indecipherable

Definition: Difficult or impossible to read or understand.

• The handwriting on the note was indecipherable.
• His explanation was so confusing that it seemed indecipherable.
• The ancient text was largely indecipherable to scholars.

Indecipherable in a sentence