Synonyms|0Antonyms|2|Broader|0Narrower|0Related|2
2
flex(verb, bend, straighten)
1
vacillate
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APASmart Define. (2011). be stiff thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/be_stiff/thesaurus/antonyms
ChicagoSmart Define. 2011. "be stiff thesaurus" https://smartdefine.org/be_stiff/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2011, be stiff thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/be_stiff/thesaurus/antonyms>.
MLASmart Define. "be stiff thesaurus" 22 May 2011. Web. 20 September 2026. <https://smartdefine.org/be_stiff/thesaurus/antonyms>