FreeVocabulary
Phlegmatic
/flɛɡˈmætɪk/ adjective hardCalm, unemotional, and slow to react, even under stress.
The phlegmatic pilot calmly radioed for help even as the engine sputtered.
Memory Trick
From 'phlegm,' one of the four ancient bodily humors believed to produce a calm, sluggish temperament — a phlegmatic person stays cool no matter what.