WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. formidable, impressive (vs. unimpressive)
- usage: 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. formidable, redoubtable, unnerving, alarming (vs. unalarming)
- usage: 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"
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See also: formidable (Dictionary)