amiability
a-mi-a-bil-i-ty
noun
The quality of being friendly, pleasant, and good-tempered.
"Her natural amiability made her popular."
Thesaurus
Synonyms: good temper, good humour, good humor, geniality, bonhomie, amiableness, affability, affableness
Antonyms: distemper, ill humor, ill humour