Synonyms|60Antonyms|12|Broader|0Narrower|0Related|44
1
loosens
1
relaxes
0
enervate
0
enfeeble
0
flexes
0
impair
0
loosen
0
looses
0
soften
0
softens
0
weaken
0
weakens
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APASmart Define. (2013). stiffens thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiffens/thesaurus/antonyms
ChicagoSmart Define. 2013. "stiffens thesaurus" https://smartdefine.org/stiffens/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2013, stiffens thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiffens/thesaurus/antonyms>.
MLASmart Define. "stiffens thesaurus" 17 June 2013. Web. 24 September 2026. <https://smartdefine.org/stiffens/thesaurus/antonyms>