Synonym: blunt, boring, dingy, dreary, dry, flat, gray, inactive, slow, sluggish, stupid, uninteresting, bright, keen, sharp, vivid. Similar words: adult, schedule, indulge, adultery, modulate, undulant, credulous, pendulum. Meaning: [dʌl] 
v. 1. make dull in appearance 2. become dull or lusterless in appearance; lose shine or brightness 3. deaden (a sound or noise), especially by wrapping 4. make numb or insensitive 5. make dull or blunt 6. become less interesting or attractive 7. make less lively or vigorous. adj. 1. lacking in liveliness or animation 2. emitting or reflecting very little light 3. being or made softer or less loud or clear 4. so lacking in interest as to cause mental weariness 5. (of color) very low in saturation; highly diluted 6. not keenly felt 7. slow to learn or understand; lacking intellectual acuity 8. (of business) not active or brisk 9. not having a sharp edge or point 10. blunted in responsiveness or sensibility 11. not clear and resonant; sounding as if striking with or against something relatively soft 12. darkened with overcast.
v. 1. make dull in appearance 2. become dull or lusterless in appearance; lose shine or brightness 3. deaden (a sound or noise), especially by wrapping 4. make numb or insensitive 5. make dull or blunt 6. become less interesting or attractive 7. make less lively or vigorous. adj. 1. lacking in liveliness or animation 2. emitting or reflecting very little light 3. being or made softer or less loud or clear 4. so lacking in interest as to cause mental weariness 5. (of color) very low in saturation; highly diluted 6. not keenly felt 7. slow to learn or understand; lacking intellectual acuity 8. (of business) not active or brisk 9. not having a sharp edge or point 10. blunted in responsiveness or sensibility 11. not clear and resonant; sounding as if striking with or against something relatively soft 12. darkened with overcast. 
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241. In full kit with helmets a dull grey, they stamped on three abreast.
242. The dull Mr Breitschwerdt disappeared into early retirement and Mr Reuter took his place.
243. There was George - dull, dreary George - sprawled full-length on the settee, his nose deep in a book as usual.
244. If your body skin looks dull, removing dead skin with an abrasive glove can make a big difference.sentencedict.com/dull.html
245. It starts as a dull ache that gradually evolves into a severe throbbing pain, centering in the frontal and temporal regions.
246. More significant, she used ten words where two would do, creating dull, unwieldy documents.
247. It was a dull, empty ache which never really went away.
248. Her voice was shaky, her eyes had become round and dull with astonishment.
249. We drive through mountains and then out along a dull coast road.
250. Following this they release blood into their eyes which turns them a dull red colour.
More similar words: adult, schedule, indulge, adultery, modulate, undulant, credulous, pendulum, undulate, on schedule, incredulity, incredulous, indulgent, modulated, adulation, indulgence, fraudulent, adulterate, incredulously, fraudulence, bull, full, mull, pull, Bull., behind schedule, fully, bully, skull, bullet.