Intensive
Part of speech: noun
Definition: Form of a word with a stronger or more forceful sense than the root on which the intensive is built.
Part of speech: adjective
Definition: Thorough, to a great degree, with intensity. Demanding, requiring a great amount. Highly concentrated.
Example sentence: When you see a fashion show, you see those seven minutes of what was six months of tedious work of, you know, going up an inch and down an inch, changing it from one shade of red to another shade of red. So it's the same as any creative process. The result is what we see, but the process is really labor intensive and work.
Intense
Part of speech: adjective
Definition: Strained; tightly drawn; kept on the stretch; strict; very close or earnest; as, intense study or application; intense thought.Extreme in degree; excessive; immoderate; as: (a) Ardent; fervent; as, intense heat. (b) Keen; biting; as, intense cold. (c) Vehement; earnest; exceedingly strong; as, intense passion or hate. (d) Very severe; violent; as, intense pain or anguish. (e) Deep; strong; brilliant; as, intense color or light.
Example sentence: Anything you build on a large scale or with intense passion invites chaos.