gravest

Baroness Lampard, who is leading proceedings, said the inquiry was "of the gravest concern and significance".

Trong is an an ideologue who views corruption as the gravest threat facing the party.

The gravest threat to these magnificent animals is our ubiquitous freeway system: Since 2015, more than 500 California cougars have become roadkill.

Bob Menendez, 70, betrayed little emotion as he watched the opening statements from the courtroom, where he is facing some of the gravest charges ever leveled against a sitting U.S. senator.

In 2019, U.S. officials said that in publishing state secrets, Assange had exposed confidential human sources "to the gravest of dangers."