Conjunctive Full definition of conjunctive Adjective (grammar ) relating to a conjunction (grammar ) of a personal pronoun , used only in immediate conjunction with the verb of which the pronoun is the subject, such as French je or Irish sé (grammar, of a verb ) Subjunctive : inflected to indicate that an act or state of being is possible, contingent or hypothetical, and not a fact. (logic ) of or relating to logical conjunction (obsolete ) Closely united. 1599 , William Shakespeare , , IV. vii. 15:She is so conjunctive to my life and soul That, as the star moves not but in his sphere, I could not but by her. Derived terms terms derived from "conjunctive" © Wiktionary