unconscientiousness unconscientiously • unconscionable · · · Info · Definitions · Antonyms · Characters · · unconscientiousness · · Text Latin · · Script 19 · · Length Definitions · · · (noun) the quality of being willing to ignore the dictates of conscience. · · Noun Definition 1 (noun) the trait of not being painstaking or careful. · · Noun Definition 2 Antonyms · · · conscientiousness · · Antonym 0 painstakingness · · Antonym 1 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075