undoubtlessly
undoubtlessly adverb: synonym of without a doubt.
Adverb
undoubtlessly (comparative more undoubtlessly, superlative most undoubtlessly)
- Synonym of without a doubt.
- “Now, little girl,” he says, with a fatherly smile (he'll soon be twenty-six), “tell me just what your difficulty is, and undoubtlessly we'll fix it up in a jiffy!”1920, American Magazine, volume 90, page 70
- Synonyms:
- without a doubt
Synonyms of undoubtlessly
Forms of undoubtlessly
| comparative | more undoubtlessly |
|---|---|
| superlative | most undoubtlessly |
Origin of undoubtlessly
From un- + doubtlessly.
Questions about undoubtlessly
- What does undoubtlessly mean?
- Undoubtlessly means synonym of without a doubt.
- What part of speech is undoubtlessly?
- Undoubtlessly is an adverb.
Words near undoubtlessly in the dictionary
Source and license
Adapted from Wiktionary: undoubtlessly (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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