disciplined

[dis-uh-plind]
adjective
having or exhibiting discipline; rigorous: paintings characterized by a disciplined technique.

Origin:
1350–1400; Middle English. See discipline, -ed2

nondisciplined, adjective
undisciplined, adjective
well-disciplined, adjective
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World English Dictionary
undisciplined (ʌnˈdɪsɪˌplɪnd)
 
adj
not exhibiting self-control or good behaviour

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

undisciplined
1382, "untrained," from un- (1) "not" + pp. of discipline (v.). Cf. Ger. undisciplinirt, Swed. odisciplinerad. Specific meaning "not subject to military discipline" is attested from 1718.
Online Etymology Dictionary, © 2010 Douglas Harper
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