doubtlessly

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English[edit]

Etymology[edit]

From Middle English doutelesly, dowtelesly, equivalent to doubtless +‎ -ly.

Adverb[edit]

doubtlessly (comparative more doubtlessly, superlative most doubtlessly)

  1. (sometimes proscribed) Without question; indubitably.
    There are doubtlessly more insects than mammals.
  2. (obsolete) Without feeling doubt, without misgivings.

Usage notes[edit]

Sometimes considered a redundancy, as doubtless (without the -ly suffix) functions as an adverb with an identical meaning. The synonyms indubitably, undoubtedly, and unquestionably all require the -ly suffix.

Translations[edit]