If you unburden yourself or your problems to someone, you tell them about something which you have been secretly worrying about.
例句
The Centre became a place where many came to unburden themselves, to talk about their hopes and fears...該中心已經(jīng)成了許多人前來傾訴心事、談?wù)撔闹邢Ｍc憂懼的地方。Somehow he had to unburden his soul to somebody, and it couldn't be to Laura...不管怎樣，他需要找個人傾訴一番，而這個人不可能是勞拉。
英英詞典釋義
Adjective
1. not burdened with difficulties or responsibilities;
"unburdened by an overarching theory"- Alex Inkeles