Stiffen Thesaurus / Antonyms

6	loosen(verb, weaken, soften)
3	relax
3	soften(verb, weaken)
2	dissolve(verb, weaken, soften)
2	liquefy(verb, weaken, soften)
2	loose
2	melt(verb, weaken, soften)
1	ease
1	loosen up(verb, expression, phrasal verb)
1	weaken(verb, soften)
0	abate
0	ameliorate
0	angles
0	angling
0	annul
0	atrophy
0	attrition
0	bowstring
0	braiding
0	cable

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APA	Smart Define. (2015). stiffen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stiffen/thesaurus/antonyms
Chicago	Smart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/antonyms (accessed September 25, 2026).
Harvard	Smart Define 2015, stiffen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stiffen/thesaurus/antonyms>.
MLA	Smart Define. "stiffen thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/stiffen/thesaurus/antonyms>

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