DULL

Definition

1. verb make dull in appearance.
2. verb become dull or lusterless in appearance.
3. verb deaden (a sound or noise), especially by wrapping. — synonyms: muffle, mute, damp, dampen, tone_down
4. verb make numb or insensitive. — synonyms: numb, benumb, blunt
5. verb make dull or blunt. — synonyms: blunt
6. verb become less interesting or attractive. — synonyms: pall
7. verb make less lively or vigorous.
8. adjective lacking in liveliness or animation.
9. adjective emitting or reflecting very little light.
10. adjective being or made softer or less loud or clear. — synonyms: muffled, muted, softened
11. adjective so lacking in interest as to cause mental weariness. — synonyms: boring, deadening, ho-hum, irksome, slow, tedious, tiresome, wearisome
12. adjective (of color) very low in saturation.
13. adjective not keenly felt.
14. adjective slow to learn or understand. — synonyms: dense, dim, dumb, obtuse, slow
15. adjective (of business) not active or brisk. — synonyms: slow, sluggish
16. adjective not having a sharp edge or point.
17. adjective blunted in responsiveness or sensibility.
18. adjective not clear and resonant. — synonyms: thudding
19. adjective darkened with overcast. — synonyms: leaden