Synonyms|576Antonyms|83|Broader|17Narrower|5Related|326

10 entries under soften topic. ×

6
loosen(verb, weaken)
2
dissolve(verb, weaken)
2
liquefy(verb, weaken)
2
melt(verb, weaken)
1
weaken
0
dilute(verb, weaken)
0
heat(verb, weaken)
0
separate(verb, weaken)
0
thin(verb, weaken)
0
unfix(verb, weaken)
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APASmart Define. (2015). stiffen thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stiffen/thesaurus/antonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stiffen/thesaurus/antonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/stiffen/thesaurus/antonyms>