Find Antonyms
arguably Antonyms
Opposite of arguably
Pinning down the opposite of arguably requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adverb definition and ranked by contrast strength.
• adverb (Context 1)
In a way that can be supported by persuasive evidence or plausible reasons, often used to qualify a superlative or strong statement.
Usage Example
"She is indisputably the most influential architect of the twentieth century."
Strong
indisputably
undeniably
unquestionably
certainly
definitely
Similar words to arguably
Words similar to arguably shift depending on context. Common synonyms include:
plausibly
conceivably
debatably
possibly
potentially
Cite this Entry
Wordmom. (2026). Antonyms for Arguably. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/arguably