Dominic's search for a close relationship with God was determined and unceasing.
From the en.wikipedia.org
The in-your-face pleas of beggars, peddlers, and other supplicants are unceasing.
From the theatlantic.com
For the first time in 41 years, a Super Bowl was played in an unceasing downpour.
From the usatoday.com
Liz was a vibrant spirit who took an unceasing interest in the world about her.
From the guardian.co.uk
St. Cecilia remembered him as cheerful, charitable and full of unceasing vigor.
From the en.wikipedia.org
Taken together, the columns read like a catalogue of unceasing marital strife.
From the guardian.co.uk
The pamphlet extolled the virtues of a life lived with unceasing focus on God.
From the en.wikipedia.org
What is it with the unceasing contempt for the Great Dictator of Formula One?
From the telegraph.co.uk
There are the unceasing smaller issues and individual crises lost to history.
From the nytimes.com
More examples
Ageless: continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven"
Ceaseless: uninterrupted in time and indefinitely long continuing; "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's ...
(unceasingly) endlessly: with unflagging resolve; "dance inspires him ceaselessly to strive higher and higher toward the shining pinnacle of perfection that is the goal of every artiste"
Continuous; continuing indefinitely without stopping