doubtless

adjective

Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.

(obsolete) Free from fear or suspicion.

adverb

Without doubt; certainly; definitely; very probably, in all likelihood; doubtlessly.

Roots

dubitodoubt- · Latin · waver, hesitate

Synonyms for doubtless

doubtlesslyadv undoubtedlyadv indubitablyadv questionlessadj surelyadv certainlyadv unquestionablyadv undoubted undoubting definitelyadv presumablyadv undeniablyadv indisputablyadv probablyadv

Synonyms & related words for doubtless

Find synonyms, related words, and the definition of doubtless — including doubtlessly, undoubtedly, indubitably, questionless, surely, certainly. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to doubtless

Explore words related to doubtless — words associated with it, words that go with it, and its nearest matches in meaning. Related words include doubtlessness, assuredly, iwis, indubitable, doubt, peradventure, certes, doubtable. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for doubtless

Common synonyms for doubtless include doubtlessly, undoubtedly, indubitably, questionless, surely, certainly, unquestionably, undoubted — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does doubtless come from?

The word doubtless breaks down into one root of Latin origin: the root doubt-, from Latin dubito (“waver, hesitate”). Explore each root to see other English words built from the same source.