11
cause death
4
slow
3
dampen
3
deaden
3
decelerate
3
retard
3
slow down(activity, move)
2
brake
2
check
2
daunt
2
discourage
2
dishearten
2
dull
2
enervate
2
inhibit
2
obstruct
2
slow up(verb, expression, phrasal verb)
2
weaken
1
dally
1
dawdle
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APASmart Define. (2015). quicken thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/quicken/thesaurus/antonyms
ChicagoSmart Define. 2015. "quicken thesaurus" https://smartdefine.org/quicken/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, quicken thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/quicken/thesaurus/antonyms>.
MLASmart Define. "quicken thesaurus" 16 December 2015. Web. 26 September 2026. <https://smartdefine.org/quicken/thesaurus/antonyms>