INSOUCIANCE
Meaning of INSOUCIANCE in English
n. 25B6; noun NONCHALANCE, unconcern, indifference, heedlessness, calm, equanimity, composure, ease, airiness; informal cool.
anxiety.
Concise Oxford thesaurus English vocabulary.
Краткий оксфордский словарь английского языка тезаурус.
2012