adjective

unambiguously explicit and direct.

a categorical assurance

unqualified,unconditional,unequivocal,unreserved,absolute,explicit,unambiguous,definite,certain,direct,downright,outright,complete,thorough,thoroughgoing,total,emphatic,positive,express,point-blank,wholehearted,conclusive,undiluted,unalloyed,unadulterated,unstinting,without reservations,out-and-out,one hundred per cent,apodictic