1
impassive
1
isolated
1
lapse(noun, drop, decline, fall, failure)
1
lapsing(verb, deteriorating)
1
lightening(adjective, declining, shrinking, lowering, falling)
1
lock
1
losing momentum(expression, adjective, weakening, lessening, declining)
1
loss(noun, drop, cut, decline, fall)
1
low tide(noun, expression, drop, decrease, retreat)
1
low water(noun, expression, drop, decrease, retreat)
1
lowering(noun, verb, adjective, drop, fall)
1
marcescent
1
matronly
1
moderating(adjective, declining, shrinking, lowering, falling)
1
moldering
1
mouldering(verb, deteriorating)
1
narrowing(verb, adjective, declining, shrinking, lowering)
1
neap
1
obsolescent
1
old
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APASmart Define. (2015). waning thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/waning/thesaurus/synonyms
ChicagoSmart Define. 2015. "waning thesaurus" https://smartdefine.org/waning/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, waning thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/waning/thesaurus/synonyms>.
MLASmart Define. "waning thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/waning/thesaurus/synonyms>