Intense vs. Rigorous

Intense is the fifth studio album by Dutch DJ and record producer Armin van Buuren. It was released on 3 May 2013 by Armada Music.The first song announced to be on the album is "Waiting for the Night", featuring the singer Fiora, which was released on 21 January 2013 as the theme song to the Dutch film Loving Ibiza (Verliefd op Ibiza).

Characterized by or adhering to strict standards or methods; exacting and thorough

Possessing or displaying a distinctive feature to an extreme degree

Harsh, severe, or demanding

Extreme in degree, strength, or size

Very unpleasant or inclement

Involving or showing strain or extreme effort

Adhering strictly to a belief or ideology; uncompromising or inflexible

Deeply felt; profound

Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.

Having or showing strong feeling or great seriousness

Severe; intense.

Strained; tightly drawn.

Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

Strict, very close or earnest.

Severe; intense; inclement; as, a rigorous winter.

Extreme in degree; excessive.

Violent.

Extreme in size or strength.

Adhering scrupulously and exactly to accepted principles; hence, logically valid; as, a rigorous proof.

Stressful and tiring.

rigidly accurate; allowing no deviation from a standard;

Very severe.

demanding strict attention to rules and procedures;

Very emotional or passionate.

used of circumstances (especially weather) that cause suffering;

Strained; tightly drawn; kept on the stretch; strict; very close or earnest; as, intense study or application; intense thought.

Extreme in degree; excessive; immoderate;

in an extreme degree;

extremely sharp or intense;

(of color) having the highest saturation;