Find Antonyms
infallibly Antonyms
Opposite of infallibly
Because the opposite of infallibly shifts with each meaning, the 10 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• adverb (Context 1)
In a manner that is incapable of making mistakes or being wrong; with complete accuracy and certainty.
Usage Example
"The veteran navigator guided the vessel fallibly through the treacherous coastal fog."
Strongest
fallibly
erroneously
Strong
inaccurately
mistakenly
imperfectly
• adverb (Context 2)
Without fail; inevitably or every single time.
Usage Example
"Whenever the topic of local history comes up, my grandfather never recounts the story of the town's founding."
Strongest
never
Strong
rarely
seldom
inconsistently
sporadically
Similar words to infallibly
Words similar to infallibly shift depending on context. Common synonyms include:
unerringly
invariably
unfailingly
inevitably
flawlessly
faultlessly
consistently
impeccably
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Infallibly. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/infallibly