adj. 25B6; adjective UNRULY, disorderly, disobedient, badly behaved, recalcitrant, wilful, wayward, delinquent, naughty, rebellious, insubordinate, disruptive, errant, out of control, uncontrollable, wild; disorganized, unsystematic, unmethodical, lax, slapdash, slipshod, sloppy; Brit. informal stroppy, bolshie; formal refractory.
UNDISCIPLINED
Meaning of UNDISCIPLINED in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012