Find Antonyms
unbelievably Antonyms
Opposite of unbelievably
Because the opposite of unbelievably shifts with each meaning, the 11 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• adverb (Context 1)
To an extraordinary or astonishing degree; extremely.
Usage Example
"The mountain trail was slightly steep during the final ascent."
Strongest
slightly
Strong
mildly
moderately
marginally
barely
somewhat
• adverb (Context 2)
In a manner that is difficult or impossible to believe.
Usage Example
"believably, none of the passengers were injured when the train derailed."
Strongest
believably
credibly
plausibly
Strong
convincingly
predictably
Similar words to unbelievably
Words similar to unbelievably shift depending on context. Common synonyms include:
incredibly
extremely
implausibly
astonishingly
remarkably
extraordinarily
improbably
inconceivably
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Unbelievably. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/unbelievably