SYN: Armed, spinous, acuminated, punctuous.
ANT: Unarmed, blunt, obtuse, stingless, pointless.
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KEY: acumen.
SYN: Point, penetrativeness, sharpness, discernment, talent, sagacity.
ANT: Bluntness, obtuseness, stupidity, dulness, indiscernment, hebetude.
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KEY: Acute.
SYN: Pointed, penetrating, sagacious, perspicacious, keen, astute, piercing, sharp, shrewd, keen-sighted, severe, distressing.
ANT: Dull, blunt, obtuse, stupid, undiscerning, heavy, chronic, stolid.