Past Tenses
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Un-failing Antonyms

Trying to find opposite word for un-failing in English? No problem. Our site contains antonyms of un-failing in 6 different contexts. We have listed all the opposite words for un-failing alphabetically.

changing
  • altering
  • alternating
  • changeable
  • developing
  • dynamic
  • growing
  • inconstant
  • irresolute
  • mobile
  • modifying
  • uncertain
failing
  • declining
  • defeated
  • deficient
  • faint
  • feeble
  • inadequate
  • insufficient
  • scant
  • scanty
  • scarce
  • short
impermanent
  • ephemeral
  • evanescent
  • passing
  • perishable
  • temporary
  • transient
limited
  • bound
  • bounded
  • checked
  • circumscribed
  • confined
  • constrained
  • controlled
  • curbed
  • defined
  • delimited
  • determinate
uncertain
  • ambiguous
  • ambivalent
  • chancy
  • conjectural
  • dubious
  • erratic
  • fitful
  • hanging by a thread
  • hazy
  • hesitant
  • iffy
unsure
  • betwixt and between
  • borderline
  • distrustful
  • dubious
  • fluctuant
  • fly-by-night
  • hesitant
  • iffy
  • in a quandary
  • indecisive
  • indeterminate

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