[ uhn-kwes-chuh-nuh-blee ]
See synonyms for unquestionably on Thesaurus.com
  1. in a way that is beyond question or doubt; certainly: Can you say that he is unquestionably guilty of this crime?

  2. in a way that is above criticism or without exception: As a wife and mother, she is unquestionably devoted.

Origin of unquestionably

First recorded in 1610–20; unquestionab(le) + -ly

Words Nearby unquestionably

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use unquestionably in a sentence

British Dictionary definitions for unquestionably


/ (ʌnˈkwɛstʃənəblɪ) /

  1. indisputably; definitely: an unquestionably great club

  2. (sentence modifier) without a doubt; certainly: unquestionably there were costs incurred

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012