undiluted
/ˌʌndaɪˈljuːtɪd/adjective
1- (of a liquid) not diluted（液体）未稀释的; 未掺水的。
1.1
- not moderated or weakened in any way未淡化的：
a sudden surge of pure, undiluted happiness.
突然涌出的真正幸福感。