noun

aggressiveness

aggressiveness, hostility, assertiveness

His aggressiveness is a problem at work.

His aggressiveness is a problem at work.

A certain amount of aggressiveness is needed to succeed.

A certain amount of aggressiveness is needed to succeed.

((sb.'s)) aggressiveness the quality of being aggressive in (sb.) His aggressiveness is a problem at work.

Synonyms: hostility, assertiveness; Antonyms: passivity, gentleness

From 'aggressive' + '-ness' (a suffix forming nouns indicating a state or quality). 'Aggressive' comes from Latin 'aggredi' (to attack).

The '-ness' at the end turns the quality ('aggressive') into a thing (the state of being aggressive).

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