"critical impetus" is a correct phrase and can be used in written English.
It means the driving force or motivation that is essential for something to be successful or have a significant impact. Example: The critical impetus behind the company's success was the founder's unwavering determination and innovative ideas.
The SDGs offer a critical impetus to revive Beijing commitments to address key data gaps by strengthening national capacities to systematically collect and analyse gender statistics.
"Nevertheless, our overall economic fundamentals continue to be strong," the ministers said, adding that growth in "emerging markets" — a reference to China, India, Brazil and other developing countries — were still providing "critical impetus to the strength of the world economy".
Authoritative power provides the critical impetus and strategic insight aiding technology adoption by aligning change management with the organization's goals for speeding the delivery of therapies to patients in need.
Weber's wide-ranging contributions gave critical impetus to the birth of new academic disciplines such as sociology and public administration as well as to the significant reorientation in law, economics, political science, and religious studies.
The plight of Yezedi minority stranded in mountains near Sinjar may have actually provided a critical impetus for an overdue revision of U.S. policy, one that the fall of Mosul did not seem to spark.
The Nuclear Freeze was a critical impetus to induce President Reagan to end a policy of refusal to engage Soviet leaders in arms control talks and enter into negotiations with Soviet Premier Mikhail Gorbachev, which ultimately led to the end of the nuclear arms race.
This program provided critical early impetus in the founding of the World Marrow Donor Association WMDAA) in 1994 to formalize the international activities under an umbrella association to promote the exchange of donors across international borders.
Fulfilling the pledges is also critical for the impetus for the climate talks in Paris, said Saleemul Huq, the director of the International Centre for Climate Change and Development.
Its critical success became the impetus for the Works Progress Administration mural programs of the later 1930s.
"We are gratified by the thorough and impartial investigation by the OIG [Office of the Inspector General] and pleased that what happened to Daniel will serve as an impetus for critical institutional changes," Yoo told The Huffington Post.
We must give technology an impetus, whatever is critical for clean energy.
