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Synonyms

inimical

American  
[ih-nim-i-kuhl] / ɪˈnɪm ɪ kəl /
Also inimicable

adjective

  1. adverse in tendency or effect; unfavorable; harmful.

    a climate inimical to health.

    Synonyms:
    noxious
  2. unfriendly; hostile.

    a cold, inimical gaze.

    Synonyms:
    antagonistic
    Antonyms:
    friendly

inimical British  
/ ɪˈnɪmɪkəl /

adjective

  1. adverse or unfavourable

  2. not friendly; hostile

"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

See hostile.

Other Word Forms

Etymology

Origin of inimical

First recorded in 1635–45; from Latin inimīc(us) “unfriendly, hostile” ( see enemy) + -al 1

Explanation

Censorship is inimical to freedom. So, most teenagers would argue, are curfews. To be inimical is to be harmful, antagonistic, or opposed to something. Inimical comes from the Latin word inimicus, meaning "enemy." It suggests acting like someone's enemy — being adverse, damaging, or downright hostile. It can refer to anything from emotions and actions to public policy. The U.S. government might declare that another nation's actions are inimical to national security — and your mom might declare that eating a dozen doughnuts every morning is inimical to your health. Be careful not to mix up inimical with inimitable, which means too good to be copied.

Keep Reading on Vocabulary.com

Vocabulary lists containing inimical

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:

Myanmar's state-run English-language newspaper, the Global New Light of Myanmar, has published a joint statement saying both countries underscored the need to prevent the misuse of Myanmar's territory for activities "inimical to their security interests".

From BBC Jun. 2, 2026

In a letter to the Supreme Court of Florida, the FTC Office of Policy Planning, Bureau of Competition wrote that “Such control by the ABA is inimical to the principles on which competition law rests.”

From The Wall Street Journal Apr. 16, 2026

More than 30 states prohibit title lending or have laws inimical to the industry.

From Salon Nov. 15, 2022

Lilly declined to comment on its support of the politicians who passed a law the company thinks is so inimical to its own interests and those of Hoosiers generally.

From Los Angeles Times Aug. 9, 2022

Winter is an inimical world; its punishment for doing things wrong is sure and prompt: death from cold or death from hunger.

From "The Left Hand of Darkness" by Ursula K. Le Guin

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