Similar words: fullness, illness, wellness, stillness, shrillness, mental illness, successfulness, coolness. Meaning: ['dʌlnɪs] 
n. 1. the quality of being slow to understand 2. the quality of lacking interestingness 3. a lack of visual brightness 4. lack of sensibility 5. without sharpness or clearness of edge or point.
n. 1. the quality of being slow to understand 2. the quality of lacking interestingness 3. a lack of visual brightness 4. lack of sensibility 5. without sharpness or clearness of edge or point. 
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1. He found the dullness of his work scarcely bearable.
2. Did you notice any unusual depression or dullness of mind?
3. They enjoy anything that breaks the dullness of their routine life.
4. The drawbacks of this relationship are its stolid dullness and its tendency to focus power in a small circle of people.Sentencedict.com
5. Dryden makes him sound a monument of dullness; in reality he is brisk, lively and journalistic.
6. He has dullness to percussion and spider angiomas.
7. The state of being drowsy or inattentive; dullness.
8. A life of dullness , of drab, unvarying monotony.
9. The dullness of the pencil made his writing illegible.
10. Mental dullness is prominent, and delirium may occur.
11. There was significant difference in shifting dullness with red paracentetic fluid between mild and severe groups, as well as between the survival and the dead in severe group.
12. Gopher Prairie is a place of unbearable dullness, conformity, hypocrisy, and oppression.
13. A Peacock teased a Crane about the dullness of her plumage.
14. Dullness as reflected in the corruptness of government, social morals, education and even religion, is expertly exposed and satirized.
15. Anything of quality was exciting in those days, for the usual run of food was of a dullness today hardly comprehensible.
16. Might he surprise us yet with a daring belied by his stolid dullness?
17. It's extraordinary how we go through life with eyes half shut, with dull ears, with dormant thoughts. Perhaps it’s just as well; and it may be that it is this very dullness that makes life to the incalculable majority so supportable and so welcome. Joseph Conrad 
18. It turned out that English for the law epitomized wordiness, unclearness , pomposity, and dullness when it made its debut after it was legitimized.
19. The five coverings which usually are the hurdles in practice, such as avarice, wrath, dullness, agitation and doubt, can't cumber him.
20. Chastity. Rarely use venery but for health or offspring, never to dullness, weakness, or the injury of your own or another's peace or reputation.
21. Moisturizing and Skin Whitening: supply nutrition and water for skin, gradually improve yellowness and dullness of skin, make the skin moistening and flexible.
22. The polishing agents have minimal cut and finish without any micro marring or dullness.
23. Mildly cover facial defects, inhibit the formation of melanin, quickly remove sallowness and dullness.
24. Durably resist pigmentation, effectively enhance the ability to eliminate shin dullness, aging and sallowness, purify and whiten shin, leave shin youthful.
25. However, flames of Ceiba flowers have burnt away all dullness in the fever, squanderingly.
26. Rarely use venery but for health or offspring, never to dullness, weakness, or the injury of your own or another's peace or reputation.
27. Purity ?Olive Moisturizing CreamMoisturizing and Skin Whitening: supply nutrition and water for skin, gradually improve yellowness and dullness of skin, make the skin moistening and flexible.
28. The writing of narrative in Senior Chinese commonly exists in falseness, devoid of content and dullness.
29. In meditation practice, you might experience a muddy, semiconscious, drifting state, like having a hood over your head: a dreamy dullness.
30. CHASTITY. Rarely use venery but for health or offspring, never to dullness, weakness, or the injury of your own or another's peace or reputation.
More similar words: fullness, illness, wellness, stillness, shrillness, mental illness, successfulness, coolness, foulness, evilness, awfulness, cruelness, frailness, usefulness, joyfulness, sinfulness, carefulness, casualness, lawfulness, restfulness, bashfulness, forgetfulness, naturalness, wakefulness, fearfulness, gradualness, wastefulness, hatefulness, helpfulness, specialness.