Dictionary.com
Thesaurus.com
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:

The hostile Vegas spotlight, meanwhile, evokes memories of Benn senior's ferocious 1995 battle with Gerald McClellan.

From BBC Sep. 11, 2026

The F-16 and F-35 are NATO’s main fighter aircraft deployed to intercept hostile drones.

From The Wall Street Journal Sep. 8, 2026

The new rules would also require tech companies to protect under 18s from harmful content that promotes or encourages eating disorders or hostile ideas about women and gender equality.

From The Wall Street Journal Sep. 8, 2026

The statement refers to "speculative reports" from "hostile external sources".

From BBC Sep. 7, 2026

Since Washington had spent eight years sending American soldiers to their death in battle against Great Britain, one might expect that he harbored even more hostile opinions toward his former adversary.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

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

While space traveling on branching paths, the player lands on nodes that become arenas with attacking hostiles in fun, turn-based fights in a retro, 8-bit presentation.

From Washington Times Jul. 7, 2017

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

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training