Synonyms|690Antonyms|87|Broader|9Narrower|24Related|202
6
laziness
4
silliness
3
craziness
3
slowness
2
deliberation
2
lateness
2
sluggishness
1
clumsiness(noun, inability)
1
delay(noun, inability)
1
deliberateness
1
dilatoriness
1
dullness
1
ineptness(noun, inability)
1
lethargy
1
obtuseness
1
stupidity
1
thickness
0
amble
0
awkwardness
0
backwardness
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APASmart Define. (2015). quickness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/quickness/thesaurus/antonyms
ChicagoSmart Define. 2015. "quickness thesaurus" https://smartdefine.org/quickness/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2015, quickness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/quickness/thesaurus/antonyms>.
MLASmart Define. "quickness thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/quickness/thesaurus/antonyms>