203 entries under adjective topic. ×

13
feeble(strong, weak, poor, low)
11
lightweight
9
fading(noun, verb, decline, collapse)
8
dying(noun, verb, decline, collapse)
7
failed
6
declining(last, critical, final, ultimate)
6
defective(poor, short, inadequate, insufficient)
6
deficient(close, light, poor, short)
6
inadequate(close, light, weak, poor)
6
lacking(preposition, weak, poor, short)
6
short(close, light, weak, poor)
6
shy(close, light, weak, poor)
6
wanting(verb, preposition, close, light)
6
weakening(noun, drop, fall, failure)
5
abortive(failing, vain)
5
deteriorating(weakening, lessening, worsening, falling)
5
frail(weak, thin, delicate, ill)
5
infirm(weak, thin, delicate, ill)
5
lame(weak, poor, thin, delicate)
5
missing(noun, verb, slip, short)
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APASmart Define. (2015). failing thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/failing/thesaurus/synonyms
ChicagoSmart Define. 2015. "failing thesaurus" https://smartdefine.org/failing/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, failing thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/failing/thesaurus/synonyms>.
MLASmart Define. "failing thesaurus" 23 December 2015. Web. 24 September 2026. <https://smartdefine.org/failing/thesaurus/synonyms>