Word family noun question questioning questioner questionnaire adjective questionable ≠ unquestionable questioning ≠ unquestioning unquestioned verb question adverb unquestionably questioningly ≠ unquestioningly
From Longman Dictionary of Contemporary Englishunquestionablyun‧ques‧tion‧a‧bly /ʌnˈkwestʃənəbli/ adverb CERTAINLY/DEFINITELYused to emphasize that something is certainly true The Eiffel Tower is unquestionably one of Paris’s most familiar landmarks. —unquestionable adjective a man of unquestionable integrityExamples from the Corpus
unquestionably• But for us the bigger disappointments unquestionably are associated with Mr Bush, and they begin with foreign policy.• The temporary bonanza of revenue from North Sea oil should unquestionably be invested for the future.• If some one had laid out the consequences of their behavior, they would have unquestionably behaved otherwise.• Colm Henry is unquestionably Ireland's best known rock photographer, although he by no means limits his skills to the music area.• New Hampshire unquestionably possesses a disproportionate influence over the nominating process.• The outcome is quite unknown but Ceolred was unquestionably the invader and it should not be assumed that Ine won.• This estimate seems to me to be unquestionably too high.