Adjective

(en adjective)

incessant; never slackening

* 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.

* {{quote-book

, year=1818 , author=Mary Shelley , title=Frankenstein , chapter=4 citation , passage=These thoughts supported my spirits, while I pursued my undertaking with unremitting ardour.}}

Adjective

(en adjective)

Full of zeal; ardent, fervent; exhibiting enthusiasm or strong passion.

* 1791 , , volume 1, page 238:

Johnson was truly zealous for the success of "The Adventurer;" and very soon after his engaging in it, he wrote the following letter:

* 1896 , , A History of the Warfare of Science with Theology in Christendom (2004 edition), page 122:

Doubtless many will exclaim against the Roman Catholic Church for this; but the simple truth is that Protestantism was no less zealous against the new scientific doctrine.

* 1940 , Foster Rhea Dulles, America Learns to Play: A history of popular recreation, 1607-1940 , page 61:

and there were few more zealous dancers at the fashionable balls in the Raleigh Tavern at Williamsburg.

* 2011 April 4, " Newt Gingrich," Time (retrieved 9 Sept 2013):

Newt Gingrich . . . left Congress in 1998, following GOP midterm-election losses that many blamed on his zealous pursuit of Bill Clinton's impeachment.