"seriously competitive" is a grammatically correct phrase and can be used in written English.
Example: The job market in this industry is seriously competitive, with hundreds of qualified candidates vying for the same positions.
"It is very clear that EVs are going to be seriously competitive to conventional vehicles.
Of this year's 52 judicial races in New York City, only 2 are seriously competitive.
Rounders, old English game that never became a seriously competitive sport, although it is probably an ancestor of baseball.
Barbara Follett, an MP who sits outside the Brownite circle, notes: "He plays a seriously competitive game of rounders.
But when the impressions become competitive, and I mean seriously competitive, the show really steps up a gear.
To the Sports Editor: Because all seriously competitive cyclists apparently used drugs, either Lance Armstrong had better drugs, or he was the strongest rider regardless.
Companies that seriously produce competitive SaaS products are experiencing increases in customer acquisition costs (CAC).
Importantly, senior management strives to create a culture of perpetual crisis that forces the company to look seriously at competitive threats and develop new growth businesses.
Continued reliance on the aging Walloon heavy industry, coupled with a declining investment rate, seriously compromised the competitive power of the Belgian economy, reducing its growth rate to a level near that of Britain's.
It also shows how law firms that take security seriously have a competitive advantage.
More seriously, an HPA competitive event called the Icarus Cup has been founded in England, taking place this June.
