insouciant
2 synonyms and 2 antonyms for insouciant, grouped by meaning and by how common each one is.
Adj — Relaxed and not worried about anything.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Antonyms
Etymology
Came from French insouciant, formed from in- (“not”, a prefix) and souciant (“worrying”); first recorded in 1828.
Full origin of insouciant →