good-tempered
adjective
• not easily irritated or made angry.
• "she was amiable and good-tempered"
Similar:
equable,
even-tempered,
imperturbable,
unexcitable,
unruffled,
unperturbed,
unflustered,
undisturbed,
unagitated,
untroubled,
well balanced,
easy-going,
calm,
relaxed,
composed,
collected,
self-possessed,
cool,
and collected,
at ease,
as cool as a cucumber,
nonchalant,
insouciant,
blithe,
mellow,
mild,
serene,
tranquil,
placid,
steady,
stable,
quiet,
level-headed,
unflappable,
unfazed,
together,
laid-back,
nonplussed,
equanimous,