Usually means: Without any hint of uncertainty.
Definitions Related words Mentions History
We found 15 dictionaries that define the word doubtlessly:

General (14 matching dictionaries)
  1. doubtlessly: Merriam-Webster
  2. doubtlessly: Oxford Learner's Dictionaries
  3. doubtlessly: Collins English Dictionary
  4. doubtlessly: Vocabulary.com
  5. Doubtlessly, doubtlessly: Wordnik
  6. doubtlessly: Wiktionary
  7. Doubtlessly, doubtlessly: Dictionary.com
  8. Doubtlessly: Online Plain Text English Dictionary
  9. doubtlessly: Webster's Revised Unabridged, 1913 Edition
  10. Doubtlessly: AllWords.com Multi-Lingual Dictionary
  11. doubtlessly: Webster's 1828 Dictionary
  12. doubtlessly: FreeDictionary.org
  13. doubtlessly: Mnemonic Dictionary
  14. Doubtlessly: TheFreeDictionary.com

Business (1 matching dictionary)
  1. doubtlessly: Legal dictionary

(Note: See doubtless as well.)

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Definitions from Wiktionary (doubtlessly)

▸ adverb:  (sometimes proscribed) Without question; indubitably.
▸ adverb:  (obsolete) Without feeling doubt, without misgivings.

Similar:
undoubtably, unquestionably, undoubtedly, undoubtfully, indubitably, no doubt, for a fact, indubiously, certainly, of a certainty, more...

Opposite:
undoubtedly, certainly, unquestionably, indisputably

▸ Words similar to doubtlessly

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Similar:
undoubtably, unquestionably, undoubtedly, undoubtfully, indubitably, no doubt, for a fact, indubiously, certainly, of a certainty, more...

Opposite:
undoubtedly, certainly, unquestionably, indisputably



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