adj.1. Of, relating to, or characterized by intensity: intensive training.
2. Grammar Tending to emphasize or intensify: an intensive adverb.
3. Possessing or requiring to a high degree. Often used in combination: labor-intensive.
4. Of or relating to agricultural production that achieves high yields per acre of land but requires significant input of labor or materials.
5. Physics Having the same value for any subdivision of a thermodynamic system: intensive pressure.
n. Grammar A linguistic element, such as the adverb extremely or awfully, that provides force or emphasis. Also called intensifier.