Phlegmatic means calm and hard to stir up. A phlegmatic temperament.
It comes from the four humours, where phlegm was supposed to make a person cool and slow. Phlegmatic is mild praise now, though it began as a diagnosis of sluggishness.
1adjectivephlegmaticCalm and hard to stir up.
“He was phlegmatic about losing the whole thing.”
phlegmatic is a quality.
Greek phlegmatikos, from phlegma, one of the four bodily humours of ancient medicine.
Ancient Greek
φλεγματικός
Latin
phlegmaticus
Old French
fleumatique
Middle English
fleumatik
English, today
phlegmatic
From Middle English fleumatik, flewmatik, flematik, fleumatyke, flewmatyk, from Old French fleumatique, from Latin phlegmaticus, from Ancient Greek φλεγματικός, from φλέγμα, referring to the humour which ancient Hippocratic and later Galenic medicine associated with mildness, coldness, sluggishness, and indifference. Spelling later altered to resemble the word's Latin and Greek roots, with modern pronunciation following this new spelling.
Etymology from Wiktionary, CC BY-SA