unvarnished
/ˌʌnˈvɑːnɪʃt/adjective
1- not covered with varnish未上清漆的。
1.1
- (of a statement or manner) plain and straightforward（声明, 态度）无掩饰的; 率真的：
please tell me the unvarnished truth.
请告诉我事实真相。