The phrase "a more relentless" is correct and usable in written English.
It can be used when comparing the intensity or persistence of something, suggesting that it is greater than another.
Example: "The team faced a more relentless opponent in the championship game than they had in previous matches."
Alternatives: "a more unyielding" or "a more persistent".
At Sochos, a sushi bar that overlooks the Arabian Sea, the partying takes on a more relentless aspect.
The radio station couldn't have asked for a more relentless hypeman than Diddy, though, who hasn't let untold millions of dollars dampen his fundamental gifts as a booster.
"Rid of Me," released the following year, was even better, with a more relentless sound and a more probing curiosity about gender, sexuality, and power.
To dissect one's own very flawed thoughts and feelings — which was my goal when I wrote this book — is a more relentless process.
And rock kids raised on Oasis or the Strokes found out that there was a more relentless form of live entertainment.
No matter what the polls showed, from the start, Mr. Gore was known as a more relentless campaigner than Mr. Bush.
Cooper says people who return from holiday refreshed, re-energised and refocused usually feel better able to cope with what is now a much more relentless and challenging work environment for many of us.
Also playing in a somewhat more relentless fashion is current techno favourite Call Super, while cult concern Huntleys & Palmers take over elsewhere, with Auntie Flo, Esa and founder Andrew Thomson playing their unique blend of globe-spanning, experimental cuts held together with a Glasweigan club pulse.
He combined that with what he maintains would be a far more relentless attack on the Islamic State, including seizing oil in areas where it operates, presumably in Iraq (although most of the oil belongs to Iraq, and the Bush administration always went to some lengths to say it would be preserved for the benefit of the Iraqi people, not sold by the United States).
Lance Armstrong may have rebuffed the charges of countless fierce riders during the Tour de France, but he is about to face a man more relentless than himself.
But Mr. Sharon promised that released from Government service, he would mount an even more relentless attack on Mr. Shamir and his plan for Palestinian elections in the occupied territories.
