cogent

1. ADJ A cogent reason, argument, or example is strong and convincing. (理由、论据或举例)令人信服的[正式]

Every decision has to be backed up with rational and cogent arguments. 每项决定都应该有合理和令人信服的论据做支持。

2. cogencyN-UNCOUNT

The film makes its points with cogency and force. 该影片强有力地阐明了主旨。