espantoso

adjective
  1. Causing fear or alarm; frightening or terrifying. adjective
    The espantoso storm left the town in ruins.
    Her espantoso scream echoed through the empty halls.
  2. Extremely bad or unpleasant; dreadful. adjective
    The meal was espantoso, and no one could finish it.
    His espantoso behavior at the party embarrassed everyone.