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Synonyms

hostility

American  
[ho-stil-i-tee] / hɒˈstɪl ɪ ti /

noun

hostilities plural
  1. a hostile state, condition, or attitude; enmity; antagonism; unfriendliness.

    Synonyms:
    hatred, ill will, animus, animosity
    Antonyms:
    friendliness
  2. a hostile act.

  3. opposition or resistance to an idea, plan, project, etc.

  4. hostilities,

    1. acts of warfare.

    2. war.

    Synonyms:
    conflict, fighting
    Antonyms:
    peace

hostility British  
/ hɒˈstɪlɪtɪ /

noun

  1. enmity or antagonism

  2. an act expressing enmity or opposition

  3. (plural) fighting; warfare

"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

Other Word Forms

Derived Forms

Inflected Forms

noun

Etymology

Origin of hostility

First recorded in 1375–1425; late Middle English hostilite, from Latin hostīlitās, from hostīl(is) ( see hostile) + -itās -ity

Explanation

Hostility is the state of ill will and bad feeling. If a teacher embarrasses you in front of the whole class, you will probably regard him or her with hostility for the remainder of the school year. Hostility can be used to describe aggressive relations between two countries as well as between people. The issue of territorial borders can often cause hostility between neighboring countries. If actual fighting breaks out, use the word hostilities to refer to the violent actions between them. The ordinary citizens of the countries involved will look forward to the end of hostilities when the two governments are able to work together for peace.

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Vocabulary lists containing hostility

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.

As you said, it’s all about hostility to Congress.

From Slate • Jun. 11, 2026

In several messages to Epstein, Walker complained about hostility from her.

From The Wall Street Journal • Jun. 8, 2026

Policymakers in Washington viewed the UIC with hostility, accusing it of having ties to al-Qaeda.

From BBC • Jun. 6, 2026

The most prominent figures in artificial intelligence are stepping back from dire predictions about mass unemployment, as the industry faces growing public hostility over AI's promised transformation of the workplace.

From Barron's • May 27, 2026

She turned to see whom the voice was talking to, where his hostility was directed, to whom.

From "Nine, Ten: A September 11 Story" by Nora Raleigh Baskin

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