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dull

[ duhl ]
/ dʌl /
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See synonyms for: dull / dulled / duller / dulling on Thesaurus.com

adjective, dull·er, dull·est.
verb (used with or without object)
to make or become dull.
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Origin of dull

1200–50; Middle English; akin to Old English dol foolish, stupid; cognate with German toll

synonym study for dull

1. Dull, blunt refer to the edge or point of an instrument, tool, or the like. Dull implies a lack or a loss of keenness or sharpness: a dull razor or saw. Blunt may mean the same or may refer to an edge or point not intended to be keen or sharp: a blunt or stub pen; a blunt foil. 7. Dull, blunt, slow, stupid are applied to mental qualities. Dull implies obtuseness, lack of imagination: a dull child. Blunt implies loss of original keenness of intelligence through disease, sad experience, or the like: His critical faculties were blunt. Slow applies to a sluggish intellect: a slow mind. Stupid implies slowness of mental processes, but also lack of intelligence, wisdom, prudence, etc.: a stupid person.

OTHER WORDS FROM dull

dullness, dulness, noundully, adverbun·dulled, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use dull in a sentence

British Dictionary definitions for dull

dull
/ (dʌl) /

adjective
verb
to make or become dull

Derived forms of dull

dullish, adjectivedullness or dulness, noundully, adverb

Word Origin for dull

Old English dol; related to Old Norse dul conceit, Old High German tol foolish, Greek tholeros confused
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

Other Idioms and Phrases with dull

dull

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