dark, dim, black, gloomy, obscure, vague, grey

名詞 dark:

1. absence of light or illumination
   同義詞：darkness
2. absence of moral or spiritual values
   同義詞：iniquity, wickedness, darkness
3. an unilluminated area
   同義詞：darkness, shadow
4. the time after sunset and before sunrise while it is dark outside
   同義詞：night, nighttime
5. an unenlightened state
   同義詞：darkness

形容詞 dark:

1. devoid of or deficient in light or brightness; shadowed or black
2. (used of color) having a dark hue
3. brunet (used of hair or skin or eyes)
4. stemming from evil characteristics or forces; wicked or dishonorable-Thomas Hardy
   同義詞：black, sinister
5. causing dejection
   同義詞：blue, depressing, dingy, disconsolate, dismal, dispiriting, gloomy, grim, sorry, drab, drear, dreary
6. secret
7. showing a brooding ill humor
   同義詞：dour, glowering, glum, moody, morose, saturnine, sour, sullen
8. lacking enlightenment or knowledge or culture
   同義詞：benighted
9. marked by difficulty of style or expression
   同義詞：obscure
10. having skin rich in melanin pigments
    同義詞：colored, coloured, dark-skinned, non-white
11. not giving performances; closed

1. I'm getting married again, but keep it dark, will you?
   我要再婚了，可要保密呀，行嗎？
2. It's a dark and moonless night.
   這是一個黑暗無月的夜晚。
3. Some children are afraid of the dark.
   有些小孩怕黑。

dark

adj.（形容詞）
dark.er,dark.est 縮寫 dk.

Lacking or having very little light:
黑暗的：缺乏或只有少量光線的：
例句：
a dark corner.
黑暗的角落

Lacking brightness:
缺乏光亮的：
例句：
a dark day.
陰天

Reflecting only a small fraction of incident light.
光線微弱的：反射入射光的僅一小部分的
Of a shade tending toward black in comparison with other shades. Used of a color.
有陰影的，暗色調的：和其他陰影相比較，屬于趨向于黑色的陰影的。用于顏色
Having a complexion that is not fair; swarthy.
黑皮膚的：具有非白晰的臉色的；黑黝黝的
Characterized by gloom; dismal:
以幽暗為特點的；憂郁的：
例句：
took a dark view of the consequences.
對結果持悲觀看法

Sullen or threatening:
陰郁的或威脅的：
例句：
a dark scowl.
臉色陰郁

Difficult to understand; obscure:
難以理解的；模糊的：
例句：
stories that are large in scope and dark in substance.
故事范圍龐大，但內容難以理解

Concealed or secret; mysterious:
隱藏的或秘密的；神秘的：
例句：
.the dark mysteries of Africa and the fabled wonders of the East.(W. Bruce Lincoln)
.非洲黑色的神秘和東方的神話般的奇跡.(W.布魯斯·林肯)

Lacking enlightenment, knowledge, or culture:
沒知識的：缺乏教育、知識或文化的：
例句：
a dark age in the history of education.
教育史上的黑暗時代

Exhibiting or stemming from evil characteristics or forces; sinister:
兇惡的，陰險的：展示或來自邪惡的人物或力量的阻礙；邪惡的：
例句：
.churned up dark undercurrents of ethnic and religious hostility.(Peter Maas)
.攪起種族和宗教仇視的邪惡潛流.(彼得·馬斯)

Having richness or depth:
富有的，深沉的：
例句：
a dark, melancholy vocal tone.
低沉憂郁的聲調

Not giving performances; closed:
不演出的；關閉的：
例句：
The movie theater is dark on Mondays.
電影院每逢星期一公休

n.（名詞）
Absence of light.
黑暗：缺乏光線
A place having little or no light.
黑暗之處：光線很弱或沒有光線的地方
Night; nightfall:
夜晚；黃昏：
例句：
home before dark.
天黑以前回家

A deep hue or color.
深色調：深的色調或顏色

<習慣用語>in the dark
In secret:
秘密地：
例句：
high-level decisions made in the dark.
高層決定是秘密地制定的

In a state of ignorance; uninformed:
一無所知地；未通知地：
例句：
kept me in the dark about their plans.
我對他們的計劃一無所知

來源：
Middle English derk
中古英語 derk
from Old English deorc
源自 古英語 deorc

【引伸】
dark.ish
adj.（形容詞）
dark.ly
adv.（副詞）
dark.ness
n.（名詞）
<參考詞匯><同義詞>dark,dim,murky,dusky,obscure,opaque,shady,shadowyThese adjectives indicate the absence of light or clarity.
這些形容詞表示缺乏光線或清晰度。
Dark, the most widely applicable, can refer to insufficiency of illumination for seeing:
Dark 應用的最廣泛，指能被沒有足夠的光源看見：
例句：
.Under the earth, in the flat, dark air, the wet, gloomy rock gave quarter grudgingly. (Jimmy Breslin).The word can also denote deepness of shade or color (
.在地下，在死氣沉沉的、陰暗的空氣里，潮濕陰郁的石頭不情愿地分開 （吉米·布雷斯林）。這個單詞也能表示陰影或顏色的深度(

例句：
dark brown), absence of cheer (
深褐色)， 不高興(

例句：
a dark, somber mood), or lack of rectitude:
不高興、憂郁的情緒) 或缺乏正直：

例句：
.It [gold] serves what life requires,/But dreadful too, the dark Assassin hires. (Alexander Pope).
.它 為生活的需要服務，但是也是可怕的，成為邪惡的暗殺團體成員的雇金. （亞歷山大教皇）。

Dim suggests lack of clarity of outline, as of physical entities or mental processes such as recollection:
Dim 暗示使輪廓清晰的缺乏，如物理實體或腦力過程的，如回憶：
例句：
.life and the memory of it cramped,/dim, on a piece of Bristol board. (Elizabeth Bishop);it can also apply to a source of light to indicate insufficiency:
.生活及其回憶在一塊上等板紙上束縛著、模糊著. （伊麗莎白大主教）；它也能用于被表示不足光線的來源：

例句：
.storied Windows richly dight,/Casting a dim religious light. (John Milton).
.以歷史故事裝飾富麗堂皇的窗戶，投射了一絲模糊的宗教光線. （約翰·米爾頓）。

Murky implies darkness, often extreme, such as that produced by smoke or fog:
Murky 意指黑暗，往往是極端的，如由煙或霧致成的：
例句：
.an atmosphere murky with sand. (Willa Cather).
由沙子導致的黑暗氣氛 （威拉·凱瑟）。

例句：
.The path was altogether indiscernible in the murky darkness which surrounded them. (Sir Walter Scott).Figuratively it can imply dark vagueness:
.這條小徑被圍繞在漆黑中難以辨別. （沃爾特·斯科特爵士）。它能象征性地暗示不明確、朦朧模糊：

例句：
.the narrow crevice of one good deed in a murky life of guilt. (Charles Dickens).
.在罪惡糊涂的一生中，僅有的一件好事. （查爾斯·狄更斯）。

Dusky applies principally to the dimness that is characteristic of diminishing light, as at twilight:
Dusky 主要指以逐漸減弱的光線為特點的暗淡，如黎明時：
例句：
.The dusky night rides down the sky,/And ushers in the morn. (Henry Fielding);it often refers to deepness of shade of a color:
.黑夜驅走了天空/帶來了早晨. （亨利·菲爾?。?；它常指陰影或顏色的深度：

例句：
.A dusky blush rose to her cheek. (Edith Wharton).
.紅暈的羞愧涌上她的面頰. （伊迪斯·華頓）。

Obscure usually means unclear to the mind or senses (
Obscure 通常意思是思鄉(xiāng)或感覺不清晰 (
例句：
an obscure communiqué requiring clarification), but it can refer to physical darkness (
需要說明的思路不清的公報)， 但是它也能指物理上的黑暗(

例句：
the obscure rooms of a shuttered mansion).
裝上百葉窗的大廈的黑暗房間)。

Opaque means not admitting penetration by light (
Opaque 指不能被光線穿透的(
例句：
opaque rock crystals); figuratively it applies to something that is unintelligible:
不透明的巖石晶體)； 它能用于比喻難以理解的事情：

例句：
.Nixon confined himself to opaque philosophical statements that indicated he was not ready for a discussion of basic assumptions. (Henry A. Kissinger).
.尼克松把自己沉浸在晦澀的哲學論述中，這意味著他不準備討論基礎假說. （亨利·A·基辛格）。

Shady refers literally to what is sheltered from light, especially sunlight (
Shady 字面上指避光的，尤其是太陽光(
例句：
a shady grove of catalpas) or figuratively to what is of questionable honesty (
梓屬植物的避光樹叢） 或比喻意義上指有可疑的誠實（

例句：
shady business deals).
可疑的商業(yè)交易)。

Shadowy also implies obstructed light (
Shadowy 也指被擋住的光線 (
例句：
a shadowy avenue through thick foliage) but may suggest shifting illumination and indistinctness:
茂密的葉子遮住了林蔭道)， 但也可暗示轉換照明和模糊：

例句：
.[He] retreated from the limelight to the shadowy fringe of music history. (Charles Sherman).The word can refer to something that seems to lack substance and is mysterious and possibly sinister:
. 從受人注意的中心回到音樂史的虛幻邊緣. （查爾斯·謝爾曼）。這個詞可用來指看起來好象缺乏實質和神秘的或可能邪惡的事情：

例句：
a shadowy figure in a black Homburg traversing the fogbound park.
頭戴黑色翹邊帽的神秘人在因濃霧而進退不能的公園來回徘徊