Synonyms of insouciance in English:

insouciance


See definition of insouciance

noun

1‘his anxieties increased, despite Jen's insouciance’

SYNONYMS
nonchalance, unconcern, lack of concern, indifference, heedlessness, relaxedness, calm, calmness, equanimity, coolness, composure, casualness, ease, easy-going attitude, airiness, carefreeness, frivolousness, carelessness
informal cool
ANTONYMS

anxiety, concern