The word "categorical" means something that is absolute or without exception. It describes a statement or decision that is clear and has no room for doubt or alternative interpretations. Full definition
Effect size and power in assessing moderating effects of categorical variables using multiple regression: A 30 - year review (cambridge.org)
He was also director for Categorical Programs for Grant JUHSD. (cabinetreport.com)
Notably, in the present study we assessed comorbidity using a dimensional approach the advantage of which is that it does not miss potentially informative covariation in symptoms as categorical approaches do. (link.springer.com)