Before approving the grant, the review board skepticized the research team's claims.

Her skepticalness made her question every claim made by the salesman.

Euro-skeptics insisted that Brussels' policies undermined national sovereignty during the debate.

The Euro-skeptic argued that national sovereignty was more important than further integration.

The Euro-skeptical candidate argued that national sovereignty needed stronger protections than EU regulations allowed.

Euro-skepticism has gained traction among voters concerned about national sovereignty and immigration.

Several Euro-skeptic lawmakers proposed stricter controls on EU regulations during the debate.