expressed clearly and in a way that shows that you are very sure about what you are saying明确的；绝对的- to make a categorical statement发表明确声明
- to give a categorical assurance提供绝对保证
- They gave him a categorical assurance that he would not be hurt.他们断然保证他不会受到伤害。
Topics Doubt, guessing and certaintyc2Oxford Collocations DictionaryCategorical is used with these nouns: See full entry Word Originlate 16th cent.: from late Latin categoricus (from Greek katēgorikos, from katēgoria ‘statement’, from katēgoros ‘accuser’) + -al.