在线词典三不知原意是对事情的开头、经过和结局不清楚。后指装糊涂。也引申为意料不到或很突然。拼音sān bù zhī解释原意是对事情的开头、经过和结局不清楚。后指装糊涂。也引申为意料不到或很突然。英文释义to know nothing about the beginning, the middle or the end; to know nothing at all