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hostile

American  
[hos-tl, -tahyl] / ˈhɒs tl, -taɪl /

adjective

  1. of, relating to, or characteristic of an enemy.

    a hostile nation.

    Synonyms:
    aggressive, warlike
    Antonyms:
    friendly
  2. opposed in feeling, action, or character; antagonistic.

    hostile criticism.

    Synonyms:
    contrary, averse, adverse
    Antonyms:
    friendly
  3. characterized by antagonism.

    Antonyms:
    sympathetic
  4. not friendly, warm, or generous; not hospitable.


noun

hostiles plural
  1. a person or thing that is antagonistic or unfriendly.

  2. Military. an enemy soldier, plane, ship, etc.

hostile British  
/ ˈhɒstaɪl /

adjective

  1. antagonistic; opposed

  2. of or relating to an enemy

  3. unfriendly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a hostile person; enemy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

Hostile, inimical indicate that which characterizes an enemy or something injurious to one's interests. Hostile applies to the spirit, attitude, or action of an enemy: They showed a hostile and menacing attitude. Inimical applies to an antagonistic or injurious tendency or influence: Their remarks were inimical to his reputation.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of hostile

First recorded in 1585–95; from Latin hostīlis, equivalent to hostis “enemy” ( see host 2) + -īlis -ile

Explanation

If something is hostile, it's unfriendly. If you are zealous about the political causes you believe in, you will be hostile to any suggestion that the other side of the argument is reasonable. Hostile comes from the Latin word hostis, for enemy, and you can hear its relation to the word hostage. But you don't have to be from a warring nation to be hostile. You can talk about a hostile nation, a hostile takeover, a hostile remark, or a hostile attitude. Some synonyms are inimical, antagonistic, unfavorable, unfriendly.

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Vocabulary lists containing hostile

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

England formed a plan to hit Australia with pace and assembled arguably their most hostile attack in more than 50 years for the trip down under.

From BBC • Jul. 12, 2026

Hong Min, a senior researcher at the Korea Institute for National Unification, said North Korea's latest move reflects Pyongyang's shift to treating the two Koreas as "two hostile states", potentially replacing the previous armistice-based framework.

From Barron's • Jul. 10, 2026

More emotive and more vocal, Djokovic would sometimes receive a hostile reception simply because he had beaten them.

From BBC • Jul. 10, 2026

Yet new research suggests these worlds may not be as hostile to life as they appear.

From Science Daily • Jul. 9, 2026

They did not look hostile, nor were they alarmed—since her two companions were familiar to them—but merely curious.

From "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien

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