近义词：
洞若观火、管窥蠡测
| 洞若观火 | 洞若观火 dòngruòguānhuǒ [as clearly as a blazing fire;see very clearly as through looking at fire] 形容对事物观察得清楚明白,就像看火一样 老祖台察吏安民,洞若观火。——清· 钱谦益《致郎制台》 |
| 管窥蠡测 | 管窥蠡测 guǎnkuī-lícè [take a narrow view of sth;look at the sky through a bamboo tube and measure the sea with a calabash——restricted in vision and shallow in understanding] 管中视天,以瓢量海水,喻眼光狭小,见识不广或不自量力 我昨儿晚上的话竟说错了,怪不得老爷说我是“管窥蠡测”!——《红楼梦》三十六回 |
反义词：
一无所知
| 一无所知 |
了如指掌词典解释 (详细解释)
了如指掌
[have sth.at one’s fingertips; know as one know his ten fingers; know like a book; know as well as a beggar knows his bag] 形容对情况极为清楚
对他们的活动,他完全了如指掌