1. [ adjective ] emitting or reflecting very little light

"a dull glow" "dull silver badly in need of a polish" "a dull sky"

Related terms: bright lackluster flat unpolished luminosity
2. [ adjective ] lacking in liveliness or animation

"he was so dull at parties" "a dull political campaign" "a large dull impassive man" "dull days with nothing to do" "how dull and dreary the world is" "fell back into one of her dull moods"

Related terms: lively drab humdrum lackluster bovine heavy arid spiritless colorless unanimated dullness
3. [ adjective ] being or made softer or less loud or clear
Synonyms: muffled softened muted

"the dull boom of distant breaking waves" "muffled drums" "the muffled noises of the street" "muted trumpets"

Related terms: soft
4. [ adjective ] (of color) very low in saturation; highly diluted

"dull greens and blues"

Related terms: unsaturated
5. [ adjective ] so lacking in interest as to cause mental weariness
Synonyms: boring tedious wearisome irksome tiresome slow ho-hum deadening

"a boring evening with uninteresting people" "the deadening effect of some routine tasks" "a dull play" "a ho-hum speaker" "what an irksome task the writing of long letters is"- Edmund Burke

Related terms: uninteresting
6. [ adjective ] (of business) not active or brisk
Synonyms: sluggish slow

"business is dull (or slow)" "a sluggish market"

Related terms: commercial_enterprise inactive
7. [ verb ] become dull or lusterless in appearance; lose shine or brightness

"the varnished table top dulled with time"

Related terms: change
8. [ adjective ] slow to learn or understand; lacking intellectual acuity
Synonyms: dumb slow obtuse dim dense

"so dense he never understands anything I say to him" "never met anyone quite so dim" "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray "dumb officials"

Related terms: stupid
9. [ verb ] make dull in appearance

"Age had dulled the surface"

Related terms: change
10. [ adjective ] not keenly felt

"a dull throbbing" "dull pain"

Related terms: sharp deadened
11. [ adjective ] blunted in responsiveness or sensibility

"a dull gaze" "so exhausted she was dull to what went on about her"- Willa Cather

Related terms: insensitive
12. [ adjective ] not clear and resonant; sounding as if striking with or against something relatively soft
Synonyms: thumping thudding

"the dull thud" "thudding bullets" "thumping feet on the carpeted stairs"

Related terms: unreverberant
13. [ noun ] Last name, frequency rank in the U.S. is 7912
14. [ verb ] make dull or blunt, as of sharp edges or knives' blades
Synonyms: blunt
Related terms: sharpen change
15. [ adjective ] darkened with overcast
Synonyms: gray leaden grey

"a dark day" "a dull sky" "a gray rainy afternoon" "gray clouds" "the sky was leaden and thick"

Related terms: cloudy
16. [ adjective ] not having a sharp edge or point

"the knife was too dull to be of any use"

Related terms: sharp blunt unsharpened edgeless blunted
17. [ verb ] make numb or insensitive
Synonyms: benumb blunt numb

"The shock numbed her senses"

Related terms: desensitize desensitize
18. [ verb ] deaden (a sound or noise), esp. by wrapping
Synonyms: mute damp dampen tone_down muffle
Related terms: soften silencer damper
19. [ verb ] become less interesting or attractive
Synonyms: pall
Related terms: change bore
20. [ verb ] make less lively or vigorous

"Middle age dulled her appetite for travel"

Related terms: weaken cloud
Similar spelling:   dully