WordNet: formidable, redoubtable, unnerving
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"
- similar to alarming
formidable
- (suomi) pelottava (synonyymi)
redoubtable
- (suomi) hirmuinen (synonyymi)
unnerving
- (suomi) pelottava (synonyymi)