hostility
Americannoun
plural
hostilitiesnoun
-
enmity or antagonism
-
an act expressing enmity or opposition
-
(plural) fighting; warfare
Other Word Forms
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.
Vocabulary lists containing hostility
"To Kill a Mockingbird" by Harper Lee, Chapters 16–19
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Franklin D. Roosevelt, "A Date That Will Live In Infamy" (1941)
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Maus I: My Father Bleeds History
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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.
North Korea plans to deploy a new type of artillery along its southern border, state media said Friday, potentially putting Seoul within striking range as Pyongyang deepens its hostility towards South Korea.
From Barron's • May 8, 2026
"The two countries have a long history of backchannel dialogues," Markey notes, "and these have at times been effective ways to mitigate hostility and even to set the stage for more formal dialogues."
From BBC • May 7, 2026
"Anxiety about emerging technologies is nothing new," said researcher Nirit Weiss-Blatt, whose Substack newsletter "AI Panic" covers the growing hostility towards artificial intelligence.
From Barron's • Apr. 29, 2026
Perhaps that explains Mr. Sanders’s hostility to AI.
From The Wall Street Journal • Apr. 21, 2026
As the party walked towards Cavern Hole, Cluny could sense hostility emanating from the young mouse who flip-flopped behind him in overlarge sandals.
From "Redwall" by Brian Jacques
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.