—adj. (in English and certain other languages) noting or pertaining to a mood or mode of the verb that may be used for subjective, doubtful, hypothetical, or grammatically subordinate statements or questions, as the mood of be in if this be treason. Cf. imperative (def. 3), indicative (def. 2).
—n. 1. the subjunctive mood or mode.
2. a verb in the subjunctive mood or form.