Meanings
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1
adj
Boring; not interesting or exciting.
The meeting was so dull that I nearly fell asleep.
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2
adj
Not sharp; having a blunt edge or point.
The knife was too dull to cut the bread.
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3
adj
Not bright or shiny; giving off little light.
The room had a dull grey glow on the rainy morning.
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4
adj
Not sharp or strong, said of a feeling or pain.
She felt a dull ache in her lower back.
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5
verb
To make a feeling or quality less strong.
Years of routine had dulled his appetite for travel.
Thesaurus
Etymology
From Middle English dull, dul (also dyll, dill, dwal), from Old English dol (“dull, foolish, erring, heretical; foolish, silly; presumptuous”), from Proto-West Germanic *dol, from Proto-Germanic *dulaz, from earlier *dwulaz, a variant of *dwalaz (“stunned, mad, foolish, misled”), from Proto-Indo-European *dʰwel-, *dʰewel- (“to dim, dull, cloud, make obscure, swirl, whirl”). Cognate with Scots dull, doll (“slow to understand or hear, deaf, dull”), North Frisian dol (“rash, unthinking, giddy, flippant”), Dutch dol (“crazy, mad, insane”), Low German dul, dol (“mad, silly, stupid, fatuous”), Germa…