This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The state of being hostile; antagonism or enmity. See Synonyms at enmity.

n. A hostile act.

n. Acts of war; overt warfare.

n. The state of being hostile.

n. A hostile action, especially a military action. See hostilities for specific plural definition.

n. State of being hostile; public or private enemy; unfriendliness; animosity.

n. An act of an open enemy; a hostile deed; especially in the plural, acts of warfare; attacks of an enemy. See hostilities

n. The state of being hostile; inimical feeling; antagonism.

n. Hostile action; open opposition by war or other means; especially, in the plural, acts of warfare.

n. A hostile act which follows a declaration of war.

n. Synonyms Animosity, Ill-will, Enmity (see animosity); unfriendliness, opposition, violence, aggression.

n. War, fighting.

n. a hostile (very unfriendly) disposition

n. a state of deep-seated ill-will

n. the feeling of a hostile person

n. violent action that is hostile and usually unprovoked

"Jim asks, "If this hostility is anywhere near the typical Internet experience, is it any wonder that computing and IT are increasingly losing the women?""

act of hostility   

hostilities   

aggression    violence    animosity    contention    opposition    enmity    warfare    unfriendliness    warm   

ability    acceptability    adaptability    admissibility    affordability    agility    amiability    applicability    availability    capability   

hatred    dislike    opposition    animosity    suspicion    violence    anxiety    conflict    rebellion    contempt