- crucial, deciding, determinant, determinative, determining - having the power or quality of deciding; "the crucial experiment"; "cast the deciding vote"; "the determinative (or determinant) battle"
Antonym: indecisive (indirect, via decisive)
- determinant, determiner, determinative, determining factor, causal factor - a determining or causal element or factor; "education is an important determinant of one's outlook on life"
--1 is a kind of cognitive factor
--1 has particulars: clincher, decisive factor; influenceDerived form: verb determine2 - determinant - a square matrix used to solve simultaneous equations
--2 is a kind of square matrix