undisciplined

Undisciplined means uncontrolled or disorderly. An undisciplined bunch of dogs is nearly impossible to walk down the sidewalk together: they all want to run in different directions, chase squirrels, and bark wildly.

When you take the word disciplined, "showing control or order," and add un-, or "not," to it, you get undisciplined. This is a great way to describe an out-of-control classroom, an athlete whose explosive anger gets her kicked off the field, or someone who can't manage his own money well, spending an entire paycheck all in one place.

Definitions of undisciplined
1

adj not subjected to discipline

undisciplined talent”
Synonyms:
untrained
not disciplined or conditioned or made adept by training

adj not subjected to correction or discipline

Synonyms:
uncorrected
unpunished
not punished

adj lacking in discipline or control

undisciplined behavior”
Synonyms:
ungoverned
uncontrolled
not being under control; out of control

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