- doubtlessly as a adverb:
- 1
doubtlessly
adverb
1 doubtlessly
Without doubt; certainly.
synonyms: doubtless, undoubtedly.
Moby thesaurus: absolutely, admittedly, beyond doubt, beyond question, by all odds, definitely, dollars to doughnuts, doubtless, easily, in all likelihood, in all probability, incontestably, indeed, indisputably, indubitably, irrefragably, irrefutably, like enough, likely, most likely ... show more.
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