know better

Verb

Japanese Meaning

誤った、または疑わしい主張を正しく認識していること。 / ある行動が不適切、無意味、または規範にそぐわないことを理解していること。

I should know better than to trust rumors without checking the facts.

事実を確認せずに噂を信じるのは賢明ではないとわかっているはずだ。

Sense（1）

(set phrase) To recognize that a statement or belief is false or doubtful.

'Do you think, sir,' said Mr Willet, […] 'do you think, sir, that I'm a born fool?'

Sense（2）

(set phrase) To understand that certain behavior is wrongful, futile, or inappropriate.

"All that happened when he was eight; he's older now and knows better."

knows better

（ present singular third-person ）

knowing better

（ participle present ）

knew better

（ past ）

known better

（ participle past ）