Act up and Behave

Opposite meaning terms

Act up verb - To behave badly.

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Behave is an antonym for act up.

Behave verb - To manage the actions of (oneself) in a particular way.

Usage example: if the children behave themselves properly and sit quietly during church, they'll get their ice cream afterward

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Act up is an antonym for behave in topics: be well-behaved, function, properly.

Nearby Words: behavior, behaving

Cite this Source

Behave and Act up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/act_up/behave

Act up & Behave. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/act_up/behave>.

Behave or Act up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/act_up/behave.

Google Ngram Viewer shows how "act up" and "behave" have occurred on timeline