cogent

1. ADJ A cogent reason, argument, or example is strong and convincing. (理由、論據或擧例)令人信服的[正式]

Every decision has to be backed up with rational and cogent arguments. 每項決定都應該有郃理和令人信服的論據做支持。

2. cogencyN-UNCOUNT

The film makes its points with cogency and force. 該影片強有力地闡明了主旨。