say it: uhn-DIS-i-plind
undisciplined is an adjective meaning "not subjected to discipline". It carries 3 recorded senses.
not subjected to correction or discipline
“let her children grow up uncorrected”
lacking in discipline or control
“undisciplined behavior”
“ungoverned youth”
Definitions, synonyms and semantic relations for undisciplined come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.