serving or tending to disjoin; separating; dividing; distinguishing.
2. Grammar. a.
syntactically setting two or more expressions in opposition to each other, as but in poor but happy, or expressing an alternative, as or in this or that.
not syntactically dependent upon some particular expression
3. Logic. b.
(of a syllogism) containing at least one disjunctive proposition as a premise.
a statement, course of action, etc., involving alternatives.
a disjunctive word
Origin: 1400–50; late Middle English Related forms
< Late Latin disjunctīvus
placed in opposition, equivalent to Latin disjunct
) (see disjunct
) + -īvus -ive