5
remit(verb, stop, calm, reduce, release)
5
skulk(verb, neglect, slip, avoid, quit)
5
slackening(noun, excess, looseness)
5
slovenly(adjective, weak, careless, indifferent, feeble)
5
slow-moving(adjective, dull, quiet, easy, slow)
5
slow up(verb, expression, phrasal verb)
5
stagnant(adjective, dull, quiet, moderate, flat)
5
tame(dull, late, behind, physical inertness)
5
unbend(verb, stop, calm, delay, rest)
5
untighten(verb, calm, quiet, reduce, release)
4
behindhand(adjective, dull, soft, low, slow)
4
decline
4
deliberate(verb, adjective, stop, quiet, delay)
4
disregardful(adjective, soft, careless, indifferent, tolerant)
4
do-nothing(adjective, dull, sluggish, lazy, motionless)
4
dodge(verb, slip, avoid, quit, hide)
4
droopy(soft, loose, limp, hanging)
4
ease off(verb, expression, phrasal verb, stop, calm)
4
ease up(verb, expression, phrasal verb, stop, reduce)
4
extinguish(insulation, refrigeration, fire extinction)
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APASmart Define. (2016). slack thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/slack/thesaurus/synonyms
ChicagoSmart Define. 2016. "slack thesaurus" https://smartdefine.org/slack/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, slack thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/slack/thesaurus/synonyms>.
MLASmart Define. "slack thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/slack/thesaurus/synonyms>