The phrase "a relentless sequence of" is correct and usable in written English.
It can be used to describe an ongoing and unyielding series of events or actions.
Example: "The storm brought a relentless sequence of heavy rains and strong winds that lasted for days."
Alternatives: "an unending series of" or "a continuous chain of".
(Britain's relationship with the European Union, for example, has been fundamentally shaped by a relentless sequence of notoriously false stories about the EU supposedly banning the British army, Scottish kilts, pints of beer, bent bananas, charity shops and Christian teachers, as well as supposedly suffocating daily life with an imaginary set of petty regulations).
"The first one is short with a medium- and two higher-speed corners, the middle sector is dominated by long straights and tight low-speed corners, while the final sector is a relentless sequence of mainly low- to medium-speed corners.
Meanwhile, the tanning bed industry is being confronted with what appears to be a relentless sequence of studies that all lead to the same conclusion.
There is a relentless sequence, late in the movie, when the two of them are smuggled into an immigrants' camp on the south coast, from where they plan to pick up a boat.
The relentless sequence of images chart the sublimation of desire: cold beer becomes warm, champagne bubbles go flat, steaming coffee and hot tea become undrinkable.
The sub-John Pawson, white-painted minimalist joinery here is scarcely a match for the breathtaking collection of 20th-century art on the upper level, nor does it come anywhere near matching the superb exterior lake terraces that Piano has added to punctuate the generously spaced, if near-relentless sequence of masterpieces.
In a relentless PowerPoint sequence, Farkas made suvorexant sound disquieting, almost gothic.
He was a relentless tide of optimism.
He is also seen as a relentless detractor of Pakistan.
"It was a relentless policy of squeezing out local populations.
He was a relentless champion of the magnificence and mischief of the English language.
