undisciplined
/ʌnˈdɪsɪplɪnd
/adjective
Lacking in discipline; uncontrolled in behaviour or manner: undisciplined soldiers the paintings were the work of an undisciplined talent...
- His footballing genius was never questioned, but back home he was known as an egomaniac who was undisciplined, uncontrollable and prone to flights of folly.
- As always, throwing money around in an undisciplined manner will prove to be wasteful down the road.
- These are some examples of how the modern sporting identity is typified by self-centered and undisciplined behavior.
Synonyms
unruly, disorderly, disobedient, badly behaved, obstreperous, recalcitrant, refractory, intractable, wilful, wayward, delinquent, perverse, naughty, contrary, rebellious, mutinous, insubordinate, disruptive, attention-seeking, turbulent, errant, out of hand, out of control;
uncontrolled, uncontrollable, unrestrained, ungovernable, wild, capricious, unsteady, untrained, unschooled
British informal stroppy, bolshie
archaic contumacious
disorganized, unorganized, erratic, unsystematic, unmethodical, disorderly, chaotic, random, irregular, haphazard, in disarray, confused, muddled, jumbled;
lax, slapdash, slipshod, sloppy
informal all over the place
British informal shambolic, all over the shop
North American informal all over the map, all over the lot