adjective
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having a sharp edge or point; that can cut well; sharp; keen; fine edged; incisive.
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having or giving off heat; having a high temperature; hot.
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severe - a) harsh; unnecessarily extreme; b) serious or stern in manner or appearance; c) grave; critical.
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sharply affecting the organs of taste or smell, as if by a penetrating power; biting; acrid; pungent.
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vigorous; energetic; intense, speedy.
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feeling or showing keen desire; impatient or anxious to do or get; ardent; eager; impetuous.