nonfeasance nonfavorite • nonfeasor · · · Info · Definitions · Characters · · nonfeasance · · Text Latin · · Script 11 · · Length 3 · · Syllables Definitions · · · (noun) a failure to act when under an obligation to do so; a refusal (without sufficient excuse) to do that which it is your legal duty to do. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073