extreme

American  

[ik-streem] / ɪkˈstrim /

adjective

extremer, extremest

1. of a character or kind farthest removed from the ordinary or average.

   extreme measures.

2. utmost or exceedingly great in degree.

   extreme joy.

   Synonyms:

   superlative

3. farthest from the center or middle; outermost; endmost.

   the extreme limits of a town.

   Synonyms:

   uttermost, last, ultimate

4. farthest, utmost, or very far in any direction.

   an object at the extreme point of vision.

5. exceeding the bounds of moderation.

   extreme fashions.

6. going to the utmost or very great lengths in action, habit, opinion, etc..

   an extreme conservative.

   Synonyms:

   unreasonable, uncompromising, fanatical, excessive, immoderate, extravagant

   Antonyms:

   moderate

7. last or final.

   extreme hopes.

8. Chiefly Sports. very dangerous or difficult.

   extreme skiing.

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noun

1. the utmost or highest degree, or a very high degree.

   cautious to an extreme.

2. one of two things as remote or different from each other as possible.

   the extremes of joy and grief.

3. the furthest or utmost length; an excessive length, beyond the ordinary or average.

   extremes in dress.

4. an extreme act, measure, condition, etc..

   the extreme of poverty.

5. Mathematics.

   1. the first or the last term, as of a proportion or series.

   2. a relative maximum or relative minimum value of a function in a given region.

6. Logic. the subject or the predicate of the conclusion of a syllogism; either of two terms that are separated in the premises and brought together in the conclusion.

7. Archaic. the utmost point, or extremity, of something.

extreme British  

/ ɪkˈstriːm /

adjective

1. being of a high or of the highest degree or intensity

   extreme cold

   extreme difficulty

2. exceeding what is usual or reasonable; immoderate

   extreme behaviour

3. very strict, rigid, or severe; drastic

   an extreme measure

4. (prenominal) farthest or outermost in direction

   the extreme boundary

5. meteorol of, relating to, or characteristic of a continental climate

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noun

1. the highest or furthest degree (often in the phrases in the extreme, go to extremes )

2. (often plural) either of the two limits or ends of a scale or range of possibilities

   extremes of temperature

3. maths

   1. the first or last term of a series or a proportion

   2. a maximum or minimum value of a function

4. logic the subject or predicate of the conclusion of a syllogism

Related Words

See radical.

Other Word Forms

• extremeness noun
• overextreme adjective
• quasi-extreme adjective
• superextreme adjective
• superextremely adverb
• superextremeness noun
• unextreme adjective

Etymology

Origin of extreme

First recorded in 1425–75; late Middle English, from Latin extrēmus “most outward,” superlative of exterus “outward”; exterior

Example Sentences

We are veering from our usual approach because USO’s extreme premiums seem unlikely to decline soon—which makes selling the puts quite attractive.

From Barron's • Apr. 8, 2026

However, extreme day trips have drawn criticism over their environmental impact.

From BBC • Apr. 8, 2026

He’s now in the extreme minority among Wall Street analysts: Just three of the 53 sell-siders tracked by FactSet have neutral-equivalent ratings on Broadcom’s stock, while the rest all have bullish stances.

From MarketWatch • Apr. 8, 2026

Venus, for example, has a surface temperature around that level, and every lander sent there has failed in part due to extreme heat.

From Science Daily • Apr. 7, 2026

Ben shared Charlie and Jamie’s view that people, and markets, tended to underestimate the probability of extreme change, but he took his thinking a step further.

From "The Big Short" by Michael Lewis

Related Words

• absolute
• dire
• drastic
• egregious
• exaggerated
• exceptional
• excessive
• extraordinary
• harsh
• irrational
• outrageous
• radical
• remarkable
• severe
• sheer
• unreasonable
• unusual
• utter