Thesaurus.com
Dictionary.com

act up (misbehave)

VERB
misbehave badly
Synonyms
WEAK
act out be bad be out of line behave badly carry on fool around horseplay make trouble misbehave rebel set a bad example show off
Antonyms
WEAK
behave
Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "act up (misbehave)" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com