equanimous

[ ih-kwan-uh-muh s ]
/ ɪˈkwæn ə məs /

adjective

having or showing equanimity; even-tempered: It was difficult to remain equanimous in the face of such impertinence.

Origin of equanimous

1645–55; < Latin aequanim(us) (see equanimity) + -ous

OTHER WORDS FROM equanimous

e·quan·i·mous·ly, adverb e·quan·i·mous·ness, noun