insouciant
UK /ɪnˈsuːsɪənt/ · US /inˈsusiənt/ adjective
- adjective Casually unconcerned; carefree, indifferent, nonchalant. “an insouciant gesture”
Synonyms
blasé uninterested adiaphroistic apathetic apathistical blithe deaf cool shiftless dispassionate dull enervated gallionic halfhearted heartless impassive ineffervescible indifferent insensible jaded casual nonchalant
Etymology
From French insouciant, from in- (“not”, prefix) + souciant (“worrying”), 1828.
Webster’s 1913
- adjective Careless; heedless; indifferent; unconcerned. J. S. Mill.
Etymology [F.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “insouciant”, CC BY-SA 4.0. Details