What does "misbehavior" mean?

Action or conduct that is inappropriate, improper, incorrect, or unexpected.

How do you pronounce "misbehavior"?

Pronounced //ˌmɪsbɪˈheɪvjə(ɹ)//.

Common synonyms include: bad conduct, behavior problem, conduct problem, courtesy, deviant behavior, deviate from the plan.

/ˌmɪsbɪˈheɪvjə(ɹ)/ noun

noun ·Uncommon ·Advanced level

Noun

1
Action or conduct that is inappropriate, improper, incorrect, or unexpected. US, countable, uncountable
"The teacher did not tolerate misbehavior in his classroom."
2
improper or wicked or immoral behavior wordnet

"What account can you give of your misbehavior?"

From mis- + behavior.