Definition of: intense

(in·tens′) adjective in·tens·er, in·tens·est
1. Strained or exerted to a high degree; ardent; unremitting; fervid: intense study.
2. Extreme in degree; very deep or strong; severe; violent; excessive: intense light or pain.
3. Putting forth strenuous effort; intent.
4. Susceptible to or exhibiting deep emotion, earnestness, or application: said of a person.
5. Phot. Having strength or marked contrast; dense: said of a negative. See synonyms under ARDENT, EAGER, VIOLENT, VIVID. [<OF <L intensus, pp. of intendere stretch out]
—in·tense′ly adverb
—in·tense′ness noun