adj. 25B6; adjective INDIFFERENT, unconcerned, uncaring, casual, nonchalant, offhand, uninterested, apathetic, unimpressed, unmoved, unresponsive, phlegmatic; informal laid-back; rare pococurante.
concerned, responsive.
BLASÉ
Meaning of BLASÉ in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012