adj. 25B6; adjective CALM, cool, composed, {cool, calm, and collected}, controlled, serene, tranquil, placid, impassive, stolid, imperturbable, unruffled, dispassionate, philosophical; informal unflappable.
excitable.
PHLEGMATIC
Meaning of PHLEGMATIC in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012