Formidable - Definition

adj 1: 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"
2: 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" [syn:
formidable, redoubtable, unnerving]