/ ˌkætəˈgɒrɪkl; NAmE -ˈgɔːr-/ adjective
[ usually before noun ] ( formal ) expressed clearly and in a way that shows that you are very sure about what you are saying :
to make a categorical statement
to give a categorical assurance
► cat·egor·ic·al·ly / -kli; NAmE / adverb :
He categorically rejected our offer.
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WORD ORIGIN
late 16th cent.: from late Latin categoricus (from Greek katēgorikos , from katēgoria statement, from katēgoros accuser) + -al .