Synonyms|279Antonyms|51|Broader|5Narrower|1Related|302
0
rapidity
0
relentless
0
rigorousness
0
rise
0
swell
0
tautness
0
tensing
0
tightening
0
unappeasable
0
upturn
-1
accretion
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APASmart Define. (2015). slackening thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/slackening/thesaurus/antonyms
ChicagoSmart Define. 2015. "slackening thesaurus" https://smartdefine.org/slackening/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, slackening thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/slackening/thesaurus/antonyms>.
MLASmart Define. "slackening thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/slackening/thesaurus/antonyms>