He is a formidable leader of the Pentagon, and he knows how focus and to get things done.
What is it that makes Beck such a formidable presence on the American political scene?
Recoil in horror as he allows The View ladies to tousle his formidable mane!
mid-15c., from Middle French formidable (15c.), from Latin formidabilis "causing fear, terrible," from formidare "to fear," from formido "fearfulness, fear, terror, dread." Related: Formidably.