dim

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

vague, dim, indefinite, obscure, ambiguous, faint

动词 dim:

1. switch (a car's headlights) from a higher to a lower beam
   同义词：dip
2. become or make darker
   同义词：darken
3. become dim or lusterless
4. make dim or lusterless
5. make dim by comparison or conceal
   同义词：blind
6. become vague or indistinct
   同义词：blur, slur

形容词 dim:

1. lacking in light; not bright or harsh
   同义词：subdued
2. lacking clarity or distinctness
   同义词：faint, shadowy, vague, wispy
3. made dim or less bright
   同义词：dimmed
4. offering little or no hope
   同义词：black, bleak
5. slow to learn or understand; lacking intellectual acuity
   同义词：dense, dull, dumb, obtuse, slow

1. I made out two dim shapes in the gloom.
   我在朦胧中看出有两个模糊的影子。
2. Once, in the dim and distant past, I was a student here.
   我早八辈子的时候在这儿读过书。
3. Old age hasn't dimmed her memory.
   她虽然年事已高，但记忆并未模糊。
4. The light of a candle is dimmed by sunlight.
   烛光在日光下显得很黯淡。
5. She is rather dim about the importance of keeping records.
   她不明白作记录的重要性。
6. The light was too dim for me to read easily.
   光线太暗，我看书有困难。

dim

adj.（形容词）
dim.mer,dim.mest

Lacking in brightness:
不明亮的：
例句：
a dim room.
微暗的房间

Emitting only a small amount of light; faint:
暗淡的：发出少量光线的；柔和的：
例句：
a dim lightbulb.
暗淡的灯泡

Lacking luster; dull and subdued.
无光泽的：缺乏光泽的；不鲜明和柔和的

Faintly outlined; indistinct:
模糊的：没有鲜明轮廓的；模糊的：
例句：
a dim figure in the distance.
远处模糊的景象

Obscure to the mind or the senses:
朦胧的：感觉或心理模糊的：
例句：
a dim recollection of the accident.
对事故模糊的回忆

Lacking sharpness or clarity of understanding or perception.See Synonyms at dark
迟钝的：理解力或领悟力迟钝的或薄弱的参见 dark
Lacking keenness or vigor.
缺乏敏锐或魄力的
Negative, unfavorable, or disapproving:
怀疑的：以反对、怀疑或非难的态度为特征的：
例句：
took a dim view of their prospects.
对他们的前景持悲观观点

v.tr.intr.（及物动词和不及物动词）
dimmed,dim.ming,dims
To make or become dim.
使之暗淡
n.（名词）

A parking light on a motor vehicle.
汽车上的停车灯
Low beam.
车头的短焦距光
Archaic Dusk.
【古语】 黄昏

来源：
Middle English
中古英语
from Old English
源自 古英语

【引伸】
dim.ly
adv.（副词）
dim.ness
n.（名词）