WordReference Random House Unabridged Dictionary of American English © 2026
non•cha•lance
(non′shə läns′, non′shə läns′, -ləns),USA pronunciation n.
WordReference Random House Learner's Dictionary of American English © 2026- the state or quality of being nonchalant;
cool indifference or lack of concern;
casualness.
- French; see nonchalant, -ance
- 1670–80
non•cha•lant /ˌnɑnʃəˈlɑnt, ˈnɑnʃəˌlɑnt, -lənt/USA pronunciation
adj.
non•cha•lant•ly, adv.
WordReference Random House Unabridged Dictionary of American English © 2026- coolly unconcerned;
indifferent;
offhand.
non•cha•lant•ly, adv.
non•cha•lant
(non′shə länt′, non′shə länt′, -lənt),USA pronunciation adj.
non′cha•lant′ly, adv.
- coolly unconcerned, indifferent, or unexcited;
casual:His nonchalant manner infuriated me.
- Latin calēre to be warm. See -ant
- French nonchalant, present participle of obsolete nonchaloir to lack warmth (of heart), be indifferent, equivalent. to non- non- + chaloir
- 1725–35
- cool, calm, collected, composed.
- excitable.
'nonchalance' also found in these entries (note: many are not synonyms or translations):