"relentlessly changing" is a correctly formed and usable phrase in written English.
You can use it to describe something that is changing constantly and without pause. For example: "The world around us is relentlessly changing, bringing with it both opportunity and challenges."
At the previous World Cup he took Uruguay to the semi-finals by relentlessly changing his formation between matches.
The film combines live action and animation, using relentlessly changing light to convey the thoughts of a woman repeatedly writing a letter.
But even before the results, for me, being a teacher – and even more so a head of department – had become less about my time in the classroom, and more about ensuring the paper trail achieves all the relentlessly changing standards.
Over the past two decades he's played and succeeded in Madison Avenue's relentlessly changing game.
However, she added, once they do, the best of them are "relentlessly focused on changing the underlying system while also trying to alleviate symptoms".
And magazines, manufacturers and retailers now relentlessly push the idea that changing your home is as easy and affordable as changing your look.
Relentlessly, the faces of the marchers are changing, as older wars yield to newer ones.
These lines roil relentlessly over fluttering hi-hats, mutating, breathing, dividing, and changing in a way that mirrors the delicate harmony and overwhelming complexity of the natural world. Colin Joyce.
Scientists, campaigners, and politicians have relentlessly reiterated the fact that scientists agree that humans are changing the climate for the worse.
The ocean has been rising slowly and relentlessly since the late 19th century, one of the hallmark indicators that the climate of the earth is changing.
Typically, when we think of good examples of branding, we think of companies like Apple, with its ever-changing products and relentlessly inventive marketing campaigns.
