Thesaurus

act up

verb

Synonyms & Antonyms of act up

1 to behave badly
  • the two-year-old was acting up in church so much that her dad had to take her outside

Synonyms for act up

Words Related to act up

Phrases Synonymous with act up

Near Antonyms for act up

2 to engage in attention-getting playful or boisterous behavior
  • you should have seen the boys acting up when they put on their aprons

Synonyms for act up

Words Related to act up

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Time Traveler for act up

Time Traveler

The first known use of act up was in 1879

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Thesaurus Entries Near act up

actuators

act up

acuity

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Cite this Entry

“Act up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/act%20up. Accessed 9 Dec. 2021.

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