even-tempered Synonyms

unexcitable undisturbed unruffled unpassionate tranquil stoical stable serene self-possessed sedate unimpassioned unagitated even-keeled imperturbable coolheaded marshmallow unshockable levelheaded level-headed easygoing laid-back relaxed poised equanimous equable cool-headed cool controlled composed collected centered calmer even good-tempered placid phlegmatical phlegmatic peaceful patient pacific mature low-pressure inirritable calm