Synonyms|518Antonyms|142|Broader|10Narrower|18Related|547
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hardness
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hesitancy
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hesitation
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hindrance
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honesty
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hostility
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huskiness
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ignorance
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immunity
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impedance
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impediment
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impertinence
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impudence
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inability(noun, ignorance)
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inelegance
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inflexibility
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insolence
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insubordination
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integrity
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interference
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APASmart Define. (2015). smoothness thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/smoothness/thesaurus/antonyms
ChicagoSmart Define. 2015. "smoothness thesaurus" https://smartdefine.org/smoothness/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, smoothness thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/smoothness/thesaurus/antonyms>.
MLASmart Define. "smoothness thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/smoothness/thesaurus/antonyms>