English Lexicon

Doubtless

/ˈdaʊt.ləs/
adverbadjectiveCEFR B2 (Upper)Top #3500 frequency
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Comprehensive Definitions & Senses

2 senses
As adverb
  1. 1

    Without doubt; certainly, surely, or almost certainly.

    "She will doubtless be the star of the upcoming theatrical production."
As adjective
  1. 1

    Free from doubt; confident or certain.

    "He remained doubtless about the validity of his scientific findings."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from Middle English, combining the noun 'doubt' (from Old French douter, Latin dubitare) with the Old English suffix '-lēas' meaning devoid of or lacking. Over time, it evolved from signifying literal freedom from uncertainty into a standard modal adverb indicating high probability or assurance.

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