formidable
-
(s) extremely impressive in strength or excellence
- a formidable opponent
- the challenge was formidable
- had a formidable array of compositions to his credit
- the formidable army of brains at the Prime Minister's disposal
-
(s) inspiring fear
- the formidable prospect of major surgery
- "a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic"- G.H.Johnston
- something unnerving and prisonlike about high grey wall