Synonyms: good-tempered, even-tempered, equable, placid
Definition: not easily irritated
Usage: an equable temper; not everyone shared his placid temperament; remained placid despite the repeated delays
Similar words: good-natured
Definition: having an easygoing and cheerful disposition
Usage: too good-natured to resent a little criticism; the good-natured policeman on our block; the sounds of good-natured play