warn or arouse to a sense of danger or call to a state of preparedness; "The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries"
fill with apprehension or alarm; cause to be unpleasantly surprised; "I was horrified at the thought of being late for my interview"; "The news of the executions horrified us"
inspiring a feeling of fear; strange and frightening; "an uncomfortable and eerie stillness in the woods"; "an eerie midnight howl"
suggestive of the supernatural; mysterious; "an eerie feeling of deja vu"
causing fear or dread or terror; "the awful war"; "an awful risk"; "dire news"; "a career or vengeance so direful that London was shocked"; "the dread presence of the headmaster"; "polio is no longer the dreaded disease it once was"; "a dreadful storm"; "a fearful howling"; "horrendous explosions shook the city"; "a terrible curse"
the act of inspiring with fear
cause fear in; "The stranger who hangs around the building frightens me"; "Ghosts could never affright her"