indubitably
UK /ɪnˈdjuː.bɪ.tə.bli/ · US /ɪnˈdu.bɪ.tə.bli/ adverb
- adverb In a manner that leaves no possibility of doubt.
Synonyms
undoubtably undoubtedly doubtlessly without doubt without a doubt unquestionably indisputably inarguably unarguably undeniably assuredly certainly definitely verifiably provably beyond doubt beyond a doubt beyond a shadow of a doubt
Etymology
From indubitable + -ly.
Webster’s 1913
- adverb Undoubtedly; unquestionably; in a manner to remove all doubt.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “indubitably”, CC BY-SA 4.0. Details