Adjective

(en adjective)

Urgent, ardent, zealous.

Requiring great exertion.

* 1961 : J. A. Philip. Mimesis in the ''Sophistês'' of Plato . In: Proceedings and Transactions of the American Philological Association 92. p. 467.

We can achieve this god?likeness only by unremitting and strenuous effort of the intellect.

Adjective

(en-adj)

Strained; tightly drawn.

Strict, very close or earnest.

Extreme in degree; excessive.

Extreme in size or strength.

* {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=28, magazine=(The Economist)

, title= High and wet , passage=Floods in northern India, mostly in the small state of Uttarakhand, have wrought disaster on an enormous scale. The early, intense onset of the monsoon on June 14th swelled rivers, washing away roads, bridges, hotels and even whole villages.}}

Stressful and tiring.

Very severe.