Main entry: perceptive
Definition: having the ability to perceive or understand; keen in discernment
Usage: a perceptive eye; a perceptive observation
Antonyms: unperceiving, unperceptive
Definition: lacking perception
Antonyms: dull
Definition: not having a sharp edge or point
Antonyms: dull
Definition: not keenly felt
Antonyms: natural
Definition: (of a musical note) being neither raised nor lowered by one chromatic semitone
Antonyms: flat
Definition: (of a musical note) lowered in pitch by one chromatic semitone
Antonyms: chronic
Definition: being long-lasting and recurrent or characterized by long suffering
Antonyms: obtuse
Definition: of an angle; between 90 and 180 degrees
Antonyms: undiscerning
Definition: lacking discernment
Antonyms: indiscriminating, undiscriminating
Definition: not discriminating