in an extreme degree; "intense heat"; "intense anxiety,"; "intense desire"; "intense emotion"; "the skunk's intense acrid odor"; "intense pain"; "enemy fire was intense"
114
severe
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"
14
pungent
sharp biting or acrid especially in taste or smell; "tasting the pungent wood sorrel"; "pungent curry"; "a pungent smell of burning sulfur"
7
acute
(medicine) having or experiencing a rapid onset and short but severe course; "acute appendicitis"; "the acute phase of the illness"; "acute patients
7
potent
having a strong physiological or chemical effect; "a potent toxin"; "potent liquor"; "a potent cup of tea"
3
loud
characterized by or producing sound of great volume or intensity; "a group of loud children"; "loud thunder"; "her voice was too loud"; "loud trombones"
1
fierce
marked by extreme intensity of emotions or convictions; fervid; "fierce loyalty"; "in a tearing rage"; "vehement dislike"; "violent passions"