The phrase "pivotal challenge" is correct and can be used in written English.
It typically refers to a challenge or obstacle that is especially significant and important, and can be the deciding factor in a situation's outcome. For example: "Facing the global pandemic was the most pivotal challenge of the century, and it reshaped the world."
In the video message, the prince will say: "The battle against climate change is surely the most defining and pivotal challenge of our times.
Effective and sustainable treatment of hospital wastewater containing high concentration of pharmaceutical compounds presents a pivotal challenge to wastewater and environmental engineers worldwide.
Fusion technology has long held the promise of producing safe, abundant, carbon-free electricity but a pivotal challenge exists: Researchers must create and harness fusion reactions to produce net energy gain.
The anti-Wall Street protests, which are being driven from their urban encampments across the nation, now face a pivotal challenge: With their outposts gone, will their movement wither?
Entrepreneurs are pulled from the audience who are willing to take the stage and pitch a pivotal challenge they're facing.
What was a pivotal challenge you faced?
Gary Marcus, scientist and author of "Guitar Zero," has written fifteen essays for The New Yorker, on topics such as Noam Chomsky, Nate Silver, Ray Kurzweil, and pivotal challenges in neuroscience, robotics, and artificial intelligence.
Higher education has always been at the forefront of meeting society's most pivotal challenges.
Our collective history has proven that when faced with pivotal challenges, we rallied with bold solutions and we prevailed.
Equipping all three to address the rapidly changing risk landscape is one of the pivotal challenges of our times.
"[Sports] taught me teamwork, respect, how to be accountable and how to prepare not only for competition but also for the future, for life," Leinart said after Costa Mesa Mayor Jim Righeimer introduced him as "one of Costa Mesa's finest". Leinart, 30, is clinging to those values amid a pivotal, challenging situation in his life.
