hostility

UK: /hɒˈstɪlɪti/ US: /hɑˈstɪlɪti/ ,(ho stil′i tē)

Inflections of 'hostility' (n): npl: hostilities

WordReference Random House Learner's Dictionary of American English © 2025

hos•til•i•ty /hɑˈstɪlɪti/   n., pl. -ties. 

1. a hostile state or attitude;
   enmity:
   [uncountable] Hostility between the two countries eased.
2. a hostile act, as of war:
   [countable] Hostilities broke out.
3. opposition or resistance to an idea:
   [uncountable] The plan met with much hostility.

WordReference Random House Unabridged Dictionary of American English © 2025

hos•til•i•ty  (ho stil′i tē), n., pl. -ties. 

1. a hostile state, condition, or attitude;
   enmity;
   antagonism;
   unfriendliness.
2. a hostile act.
3. opposition or resistance to an idea, plan, project, etc.
4. Military hostilities:
   • acts of warfare.
   • war.

• Latin hostīlitās. See hostile, -ity
• late Middle English hostilite 1375–1425

Synonyms

• 1. animosity, animus, ill will, hatred.
• 4. fighting, conflict.

Antonyms

• 1. friendliness.
• 4. peace.

Collins Concise English Dictionary © HarperCollins Publishers::

hostility / hɒˈstɪlɪtɪ/ noun ( -ties)

1. enmity or antagonism
2. an act expressing enmity or opposition
3. (plural) fighting; warfare