unperturbed
adj. 未受到搅乱的；镇定的
近义词：collected，composed，pacific，unruffled，calm，atpeace，tranquil，cool，atease，untroubled，unworried，unflurried，
英英释义
Adjective
- free from emotional agitation or nervous tension;
"the waiters were unflurried and good natured" "with contented mind and unruffled spirit"
例句
用作形容词(adj.)
- She seemed unperturbed by the news.她听到这消息似乎并不惊慌。
- The good-tempered man tends to be unperturbed.好脾气的人会泰然自若。
- He remained unperturbed and was as calm as usual.他不动声色，镇静如常。