undiscipline undisciplinable • undisciplined · · · Info · Definitions · Synonyms · Characters · · undiscipline · · Text Latin · · Script 12 · · Length Definitions · · · (noun) the trait of lacking discipline. Synonyms: indiscipline. · · Noun Definition 1 Synonyms · · · indiscipline · · Synonym 1 Characters · · c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075