adjectives
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"
awful,
dire,
direful,
dread,
dreaded,
dreadful,
fearful,
fearsome,
frightening,
horrendous,
horrific,
terrible
exceptionally bad or displeasing
"atrocious taste"; "abominable workmanship"; "an awful voice"; "dreadful manners"; "a painful performance"; "terrible handwriting"; "an unspeakable odor came sweeping into the room"
intensely or extremely bad or unpleasant in degree or quality
"severe pain"; "a severe case of flu"; "a terrible cough"; "under wicked fire from the enemy's guns"; "a wicked cough"
extreme in degree or extent or amount or impact
"in a frightful hurry"; "spent a frightful amount of money"