adj. Casually unconcerned or indifferent. See Synonyms at cool. [French, from Old French, present participle of nonchaloir, to be unconcerned : non-, non- + chaloir, to cause concern to (from Latin calēre, to be warm, heat up; see kelə-1 in the Appendix of Indo-European roots).] non′cha·lance (-läns) n. non′cha·lantly adv. |
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