Synonyms|592Antonyms|120|Broader|6Narrower|3Related|303
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reservation
0
resignation
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rest
0
sickness
0
slackness
0
smoothness
0
softheartedness
0
spinelessness
0
squeamishness
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stringency
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style
0
suppleness
0
surrender
0
tenderheartedness
0
uncertainty
0
unhealthiness
0
unsoundness
0
void
0
warm
0
warmheartedness
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APASmart Define. (2015). toughness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toughness/thesaurus/antonyms
ChicagoSmart Define. 2015. "toughness thesaurus" https://smartdefine.org/toughness/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, toughness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toughness/thesaurus/antonyms>.
MLASmart Define. "toughness thesaurus" 21 December 2015. Web. 28 September 2026. <https://smartdefine.org/toughness/thesaurus/antonyms>