overachievement overachieve • overachiever · · · Info · Definitions · Antonyms · Characters · · overachievement · · Text Latin · · Script 15 · · Length 5 · · Syllables Definitions · · · (noun) better than expected performance (better than might have been predicted from intelligence tests). · · Noun Definition 1 Antonyms · · · underachievement · · Antonym 0 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 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076