Synonyms|703Antonyms|197|Broader|21Narrower|14Related|844
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slack
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slack off(expression, fight, reach)
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slow
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sluggish
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smooth
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snappy
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spoil
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stifle
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stigma
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stolid
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strangle
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stultify
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stupefy
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stupid
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subdue
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subvert
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suffocate
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sullen
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suppress
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take the edge off(expression, idiom, help)
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APASmart Define. (2015). sharpen thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sharpen/thesaurus/antonyms
ChicagoSmart Define. 2015. "sharpen thesaurus" https://smartdefine.org/sharpen/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, sharpen thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sharpen/thesaurus/antonyms>.
MLASmart Define. "sharpen thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/sharpen/thesaurus/antonyms>