unquestionably : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: unquestionably	by the DICT Development Group
2 results for unquestionably
From WordNet (r) 3.0 (2006) [wn]:
unquestionably adv without question; "Fred Winter is unquestionably the jockey to follow"; "they hired unimpeachably first-rate faculty members" Synonym(s): unquestionably, unimpeachably without question and beyond doubt; "it was decidedly too expensive"; "she told him off in spades"; "by all odds they should win" Synonym(s): decidedly, unquestionably, emphatically, definitely, in spades, by all odds
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Unquestionable \Unques"tionable\, a. 1. Not questionable; as, an unquestionable title. 2. Not inviting questions or conversation. [R.] --Shak. -- {Unques"tionably}, adv.