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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.

"A very unimpressive Italian performance which will cause some indignation and some hostility in their press tomorrow," said the BBC's match commentary at full-time.

From BBC • Jun. 6, 2026

That means less hostility to business, and more and cheaper energy.

From The Wall Street Journal • May 28, 2026

Michelangelo’s burning resentment of Da Vinci kept him warm at night, and his hostility toward Raphael fueled his years-long dedication to tagging up the Sistine Chapel’s ceiling.

From Salon • May 16, 2026

Additionally, multiple commentators conjecture that his hostility to wind originated in 2011, when he groused that an offshore wind farm would be visible from one of his golf courses in Scotland.

From Los Angeles Times • May 14, 2026

He meets Mazen's gaze, and I'm surprised at the open hostility in the older man's face.

From "An Ember in the Ashes" by Sabaa Tahir

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