Flex and Toughen

Flex

Flex verb - Cause (a plastic object) to assume a crooked or angular form.
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Synonyms for Flex

Toughen is an antonym for flex.

Toughen

Toughen verb - To increase the ability of (as a muscle) to exert physical force.

Flex is an antonym for toughen in harden topic.

Nearby Words: tough, toughness, toughening, tougher
Cite this Source
Toughen and Flex. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/flex/toughen
Flex & Toughen. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/flex/toughen>.
Toughen or Flex. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/flex/toughen.
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