1. formidable - Adjective
2. formidable - Adjective Satellite
Exciting fear or apprehension; impressing dread; adapted to excite fear and deter from approach, encounter, or undertaking; alarming.
Source: Webster's dictionarythe formidable prospect of major surgery Source: Internet
a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic Source: Internet
something unnerving and prisonlike about high grey wall Source: Internet
a formidable opponent Source: Internet
the challenge was formidable Source: Internet
had a formidable array of compositions to his credit Source: Internet