undoubtlessly

adv

undoubtlessly

adv

Etymology From un- + doubtlessly.

1

Nonstandard Synonym of without a doubt.

“Now, little girl,” he says, with a fatherly smile (he'll soon be twenty-six), “tell me just what your difficulty is, and undoubtlessly we'll fix it up in a jiffy!”1920, American Magazine, volume 90, page 70:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.