(1)未意识(察觉，感)到的(not knowing or perceiving)[A(of)]：be～of any change/the dangers involved不觉得有什么变化/未意识到已陷入危险;She was quite～of her own beauty/having said anything rude. 她真的没有意识到自己的美貌/说过粗暴的话。

(2)没有(失去)知觉的，神志不清的(not possessing mind or having lost consciousness)：～matter没有意识的物质;in an～state处于神志不清的状态; the～stones没有知觉的石头;knock sb～把某人打昏过去;When he was hit on the head he became～. 他头部受击时失去了知觉。The driver was～for 3 hours after the crash. 司机在车祸之后昏迷了三小时。The boxer was～after the knockout. 拳击运动员被击中后昏迷了。〖同〗senseless;〖反〗conscious，aware;

(3)无(下)意识的，不自觉的(without conscious control;not resulting from conscious thought or feeling)：～humour/resentment/bias/motivation下意识的幽默/不满/偏见/动机;an～action/slight/impulse不自觉的行为/怠慢/冲动;speak with～wit 无意识地讲一些打趣的话;His prejudice is quite～.他的偏见的确是潜意识的。She has an～hostility towards her sister/habit of tapping her fingers on the desk. 她对姐姐有一种下意识的敌意/有一种无意识地用手指敲打书桌的习惯。the secrets of the～潜意识的秘密;〖同〗unrealized，unsuspecting，unknowing;〖反〗conscious，aware，knowing