Top definition
1. Of, relating to, or characterized by intensity: intensive training.
2. Possessing or requiring to a high degree. Often used in combination: research-intensive; labor-intensive.
SSD - Software Systems Development Program.

by Anonymous February 20, 2003
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2
Adjective version of intense; to be used to describe an intense moment.
Woah man, that conversation was so intensive...

John, why do you have to be so intensive?
by agirlperson July 18, 2010
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