sharp

(of something seen or heard) clearly defined

• “a sharp photographic image”
• “the sharp crack of a twig”
• “the crisp snap of dry leaves underfoot”

ending in a sharp point

having or demonstrating ability to recognize or draw fine distinctions

• “an acute observer of politics and politicians”
• “incisive comments”
• “icy knifelike reasoning”
• “as sharp and incisive as the stroke of a fang”
• “penetrating insight”
• “frequent penetrative observations”

marked by practical hardheaded intelligence

• “a smart businessman”
• “an astute tenant always reads the small print in a lease”
• “he was too shrewd to go along with them on a road that could lead only to their overthrow”

harsh

• “sharp criticism”
• “a sharp-worded exchange”
• “a tart remark”

high-pitched and sharp

• “piercing screams”
• “a shrill whistle”

extremely steep

• “an abrupt canyon”
• “the precipitous rapids of the upper river”
• “the precipitous hills of Chinese paintings”
• “a sharp drop”

keenly and painfully felt; as if caused by a sharp edge or point

• “a sharp pain”
• “sharp winds”

very penetrating and clear and sharp in operation

• “an incisive mind”
• “a keen intelligence”
• “of sharp and active intellect”

having or made by a thin edge or sharp point; suitable for cutting or piercing

• “a sharp knife”
• “a pencil with a sharp point”

sour or bitter in taste

raised in pitch by one chromatic semitone

• “C sharp”

very sudden and in great amount or degree

• “a sharp drop in the stock market”

quick and forceful

• “a sharp blow”

changing suddenly in direction and degree

• “the road twists sharply after the light”
• “turn sharp left here”
• “the visor was acutely peaked”
• “her shoes had acutely pointed toes”

a musical notation indicating one half step higher than the note named

a long thin sewing needle with a sharp point