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Synonyms

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.

Keep Reading on Vocabulary.com

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.

See Examples For:

Merz reaffirmed a series of defence and security partnerships with UK Prime Minister Andy Burnham earlier this month, including tackling hybrid attacks and hostile activity.

From BBC ● Oct. 22, 2026

Curaleaf Holding first approached Aurora about a friendly merger, and after it was rejected, launched a hostile bid.

From Barron's ● Oct. 20, 2026

Someone might intellectually understand that other people are not necessarily hostile or critical, for example, yet still instinctively respond as though rejection is inevitable.

From Science Daily ● Oct. 19, 2026

Saudi authorities said Sunday that a hostile projectile struck the southern city of Najran, injuring six.

From The Wall Street Journal ● Oct. 18, 2026

When danger suddenly approached, he needed only to protect himself from a few of his subjects, but if he had had the common people hostile, this would not have been sufficient.

From "The Prince" by Niccolò Machiavelli

Meanwhile, around 3,000 Pakistanis have left Iran since hostiles began.

From BBC ● Jun. 20, 2025

Another 2020, another arrival from extraterrestrial hostiles, this time with the ability to hunt with surgical precision based on nothing but sound.

From The Guardian ● Jan. 6, 2020

The kitchen loves its star patty so much that the cooks sometimes act as if they’re protecting it from hostiles — or the condiments Jaffe mentioned.

From Washington Post ● Aug. 20, 2018

“What is not so clear to him is how firmly he can trust the United States’ commitment to ending hostiles relations and providing security guarantees for his government should it denuclearize.”

From New York Times ● May 26, 2018

And even though there weren’t supposed to be any hostiles in the manor, she found her gun hand automatically straying to the Neutrino 2000.

From "Artemis Fowl" by Eoin Colfer

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