Find Antonyms

infallible Antonyms

Opposite of infallible

Because the opposite of infallible shifts with each meaning, the 10 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Incapable of making mistakes or being wrong.

Usage Example

"Even the most experienced doctors are not fallible and occasionally seek a second opinion."

Strongest
fallible
Strong
errant
imperfect
flawed
faulty

• adjective (Context 2)

Never failing; always effective or reliable.

Usage Example

"She had an unreliable sense of direction that guided the hiking group safely through the dense fog."

Strongest
unreliable
Strong
uncertain
ineffective
dubious
dependable

Similar words to infallible

Words similar to infallible shift depending on context. Common synonyms include:

unerring
foolproof
unfailing
surefire
errorless
dependable
flawless
reliable
See all synonyms of infallible

• Nearby Words

inextinguishable
inextricably
infallibility
infallible
infallibly
infamous
infamously

Cite this Entry

Wordmom. (2026). Antonyms for Infallible. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/infallible
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