dai2 sai3底細底细

Jyutpingdai2 sai3
Yaledái sai
名詞Uncommon

Definition

Background, identity, past record, or details about a person.

colloquialpeoplecommunication

How it's used

Often implies that the information being sought is sensitive, private, or potentially incriminating. It is frequently used in contexts involving investigation, suspicion, or assessing whether someone is trustworthy. The term carries a slightly secretive or detective-like nuance compared to more neutral words for background.

Examples

Do you know anything about his background?
He is very careful and does not want people to dig into his past.

Common phrases

to investigate someone's background
to get to the bottom of someone's history

Common mistake

Do not confuse this with general background information like educational qualifications or professional history, which are better described as 背景 or 履歷. 底細 specifically refers to hidden details or a person's true character and history that they might prefer to keep concealed.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector