Flex
Flex verb - Cause (a plastic object) to assume a crooked or angular form.
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Synonyms for Flex
Slacken and flex are semantically related in relax topic. In some cases you can use "Slacken" instead a verb "Flex".
Cite this Source
Slacken and Flex. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/flex/slacken
Flex & Slacken. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/flex/slacken>.
Slacken or Flex. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/flex/slacken.
Google Ngram Viewer shows how "flex" and "slacken" have occurred on timeline