dull Definition

dull
adj

1. Said of colour or light: lacking brightness or clearness.

Thesaurus: drab, gloomy, sober, sombre, matt, dismal, dark, dingy, dim, dusky, lacklustre; Antonym: bright, colourful, gleaming.
2. Said of sounds: deep and low; muffled.
3. Said of weather: cloudy; overcast.
4. Said of pain: not sharp.
5. Said of a person: slow to learn or understand.

Thesaurus: stupid, stolid, sluggish, slow, retarded, backward, dense, obtuse, ignorant, feebleminded; Antonym: witty, intelligent.
6. Uninteresting; lacking liveliness.

Thesaurus: monotonous, tedious, prosaic, lacklustre, wearisome, insipid, trite, hackneyed, humdrum, dreary, dismal, boring, vapid; Antonym: exciting, fascinating, exhilarating.
7. Said of a blade: blunt.

Thesaurus: blunt, flat; Antonym: sharp, sharpened, keen.

verb

tr & intr
dulled, dulling
1. To make or become dull.

Thesaurus: fade, obscure, tarnish, sully, cloud, darken; Antonym: brighten.
2. To make (esp. pain) less sharp.

Thesaurus: moderate, lessen, subdue, muffle, depress; Antonym: sharpen, stimulate.

Derivative: dullness
noun

A dull or uninteresting state.

Derivative: dully
adverb

Etymology: Anglo-Saxon dol stupid.