doubtlessly
advEtymology From Middle English doutelesly, dowtelesly, equivalent to doubtless + -ly.
1
Proscribed, Sometimes Without question; indubitably.
- There are doubtlessly more insects than mammals.
2
Obsolete Without feeling doubt, without misgivings.
- Some powers diuine, or els infernall, mixt Their angry ſeedes at his conception: For he was neuer ſprong of humaine race, Since with the ſpirit of his fearefull pride, He dares so doubtleſly reſolue of rule.c. 1587–1588 (date written), [Christopher Marlowe], Tamburlaine the Great. […] The First Part […], 2nd edition, part 1, London: […] [R. Robinson for] Richard Iones, […], published 1592, →OCLC; reprinted as Tamburlaine the Great (A Scolar Press Facsimile), Menston, Yorkshire; London: Scolar Press, 1973, →ISBN, Act II, scene vi:
- Derived terms
- undoubtlessly