Webster's Revised Unabridged Dictionary · 1913

Intense

Intense , adjective

[Latin intensus stretched, tight, past participle of intendere to stretch: compare French intense. See Intend, and compare Intent, and compare Intent, a.]

1.
Strained; tightly drawn; kept on the stretch; strict; very close or earnest; as, intense study or application; intense thought.
2.
Extreme in degree; excessive; immoderate;
(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.
In this intense seclusion of the forest. — Hawthorne