nonchalance nonchafing • nonchalant · · · Info · Definitions · Synonyms · Characters · · nonchalance · · Text Latin · · Script 11 · · Length Definitions · · · (noun) the trait of remaining calm and seeming not to care; a casual lack of concern. Synonyms: unconcern, indifference. · · Noun Definition 1 Synonyms · · · unconcern · · Synonym 1 indifference · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F