ill-nature
Definitions
A mean, surly, or irritable disposition.
The quality of being habitually unkind or spiteful.
Examples
His constant ill-nature made it difficult for him to maintain long-lasting friendships.
Despite her reputation for ill-nature, she was surprisingly kind to the stray cat she found.
Synonyms
bad temper irascibility surliness crabbiness peevishness hostility crossness
Antonyms
good nature amiability kindness geniality pleasantness affability sweetness