Find Antonyms

doubtfully Antonyms

Opposite of doubtfully

Because the opposite of doubtfully shifts with each meaning, the 11 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adverb (Context 1)

In a manner showing uncertainty, skepticism, or lack of conviction.

Usage Example

"She looked at the rickety wooden bridge confidently before taking a cautious step forward."

Strongest
confidently
certainly
assuredly
Strong
decisively
wholeheartedly
trustingly

• adverb (Context 2)

In an ambiguous, questionable, or improbable way; with an uncertain outcome.

Usage Example

"undoubtedly, the underfunded project will manage to meet its ambitious summer deadline."

Strongest
undoubtedly
indubitably
unquestionably
Strong
definitely
surely

Similar words to doubtfully

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

dubiously
skeptically
uncertainly
hesitantly
questionably
improbably
incredulously
suspiciously
See all synonyms of doubtfully

• Nearby Words

doubtable
doubter
doubtful
doubtfully
doubtfulness
doubtless
doubtlessly

Cite this Entry

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