nonachiever nonachievement • nonacid · · · Info · Definitions · Synonyms · Characters · · nonachiever · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (noun) a student who does not perform as well as expected or as well as the IQ indicates. Synonyms: underachiever, underperformer. · · Noun Definition 1 Synonyms · · · underachiever · · Synonym 1 underperformer · · 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 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 v latin small letter v U+0076