1. 暗淡的，昏暗的，不明亮的　 not bright
2. 隐约的，模糊不清的　 not easy to see

　～recollection　依稀记得
　～ room　光线暗淡的房间
　～ sound　模糊不清的声音
　eyes ～ with tears　模糊的泪眼

　He sat in a dim corner.　他坐在一个黑暗的角落里。
　I have a dim recollection of it.　我依稀记得这事。
　Prospects for any early settlement of the dispute are dim.　早日解决争端的前景并不乐观。
　The outline of the mountain in the distance is dim.　远处山脉的轮廓隐隐约约。
　The old man's eyesight was dim.　那位老人的视力很差。
　Some people are rather dim about the purposes of their lives.　有些人稀里糊涂，不知他们生活的目的是什么。
　The light is too dim for me to read easily.　光线太暗，我很难阅读。

 ♣ dim and distant
　很久以前　long past
　Once, in the dim and distant past, I live in here.　我很久以前在这里住过。

 ♣ dim, dark
　参见dark条。

　vt. & vi. （使）变暗淡，（使）变模糊 make or become unclear or not bright

　～ abruptly　突然地变暗
　～ prematurely　过早地失去光泽
　～ scarcely　光线减弱
　～ down the lights　使灯光暗下来
　～ out a light　使灯光转暗
　～ by clouds　乌云使天色变暗
　～ with steam　因有水汽而模糊
　～ with tears　泪眼蒙眬

　The lights in the theatre began to dim.　剧场的灯光开始暗下来。
　The lights of his car dimmed when another car was coming from the opposite direction.　当另一辆车从对面开来时，他减弱了他的车灯光线强度。
　He dimmed the wall lamp in the room.　他把房间壁灯拨暗。
　The candle light is dimmed by sunlight.　烛光在阳光下变弱。
　Her eyes were dimmed with tears.　她泪眼模糊。

 ♣ dim out　(v.+adv.)
　使…变弱　make (light) fainter
　The lights were dimmed out when the electricity supply was reduced.　电力供应被削减后，灯光就变暗了。
 ♣ dim up　(v.+adv.)
　逐渐增强　increase the brightness of (lighting) gradually
　During the first scene, which begins early in the morning, we'll dim the lights up to give the effect of growing daylight.　在从凌晨开始的第一场，我们将慢慢增强灯光，以达到天变亮时的效果。

　［同义词］ adj. faint, unclear
　［反义词］ adj. bright
　［词源］古英语dimm（暗）