† indiscipliˈnationObs.rare—1. [ad. late L. indisciplīnātiōn-em, f.in- (in-3) + disciplīnātiōn-em disciplination.] Non-subjection to discipline; undisciplined conduct. c1450tr.De Imitatione iii. xii. 80 Lest þou engendre sclaundre in oþir þoruȝ indisciplinacion.