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Idioms and Phrases with without question

without question

Certainly, undoubtedly, as in Without question he's the best editor we've ever had. [Late 1600s]

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.