dull

dull, tedious, monotonous, dreary

动词 dull:

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
   同义词：muffle, mute, damp, dampen, tone down
4. make numb or insensitive
   同义词：numb, benumb, blunt
5. make dull or blunt
   同义词：blunt
6. become less interesting or attractive
   同义词：pall
7. make less lively or vigorous

形容词 dull:

1. lacking in liveliness or animation
2. emitting or reflecting very little light
3. being or made softer or less loud or clear
   同义词：muffled, muted, softened
4. so lacking in interest as to cause mental weariness
   同义词：boring, deadening, ho-hum, irksome, slow, tedious, tiresome, wearisome
5. (of color) very low in saturation; highly diluted
6. not keenly felt
7. slow to learn or understand; lacking intellectual acuity
   同义词：dense, dim, dumb, obtuse, slow
8. (of business) not active or brisk
   同义词：slow, sluggish
9. not having a sharp edge or point
10. blunted in responsiveness or sensibility- Willa Cather
11. not clear and resonant; sounding as if striking with or against something relatively soft
    同义词：thudding
12. darkened with overcast
    同义词：grey, gray, leaden

1. He felt a dull ache in his shoulder.
   他感到肩膀隐隐作痛。
2. This student is very dull.
   这个学生非常愚钝。
3. It's impossible to cut a pineapple with such a dull knife.
   用一把这么钝的刀子切菠萝是不可能的。
4. This book is rather dull.
   这本书很枯燥。

dull

adj.（形容词）
dull.er,dull.est
Intellectually weak or obtuse; stupid.
愚笨的：智力上较差或迟钝的；愚蠢的
Lacking responsiveness or alertness; insensitive.
迟钝的：反应不迅速的；不敏感的
Dispirited; depressed.
沮丧的：无精打采的；沮丧的
Not brisk or rapid; sluggish:
不活泼的，萧条的：不干脆或不迅速的；迟钝的：
例句：
Business is dull.
生意冷清

Not having a sharp edge or point; blunt:
钝的：没有利刃或利尖的；钝的：
例句：
a dull knife.
一把钝刀

Not intensely or keenly felt:
隐约的：不是很强烈地感觉到的：
例句：
a dull ache.
隐痛

Arousing no interest or curiosity; boring:
枯燥的：引不起兴趣或好奇的；乏味的：
例句：
a dull play.
一出乏味的戏

Not bright or vivid. Used of a color:
不鲜明的：不明亮的，不生动的。指颜色：
例句：
a dull brown.
暗棕色

Cloudy or overcast:
阴霾的：多云的阴天的：
例句：
a dull sky.
阴沉的天空

Not clear or resonant:
不清楚的，不洪亮的：
例句：
a dull thud.
一声闷雷

v.tr.intr.（及物动词和不及物动词）
dulled,dull.ing,dulls
To make or become dull.
使变迟钝，使变麻木，使不鲜亮

来源：
Middle English dul ; akin to Old English dol
中古英语 dul ；类似于 古英语 dol

【引伸】
dull.ish
adj.（形容词）
dull.ness 或
dul.ness
n.（名词）
dul.ly
adv.（副词）
<参考词汇><同义词>dull,colorless,drab,humdrum,lackluster,pedestrian,stodgy,uninspiredThe central meaning shared by these adjectives is .lacking in liveliness, charm, or surprise.:
这一组形容词共有的意思是.缺乏活力、魅力或惊奇.：
例句：
a competent but dull performance of the role;
对角色能胜任但乏味的表演；

例句：
a colorless and unimaginative person;
一个没有个性，缺乏想象力的人；

例句：
a drab and boring job;
枯燥乏味的工作；

例句：
a humdrum conversation;
枯燥冗长的对话；

例句：
a lackluster life;
缺乏活力的生活；

例句：
a pedestrian movie plot;
平淡无奇的电影情节；

例句：
a stodgy dinner party;
枯燥无味的宴会；

例句：
an uninspired lecture. See also Synonyms at stupid lively
缺乏创见的演讲 参见同义词 stupidlively