1. (adjective) having the ability to perceive or understand; keen in discernment

• acute
• discriminating
• incisive
• keen
• knifelike
• penetrating
• penetrative
• piercing
• sharp
• apperceptive
• apprehensive
• discerning
• insightful
• observant
• observing
• quick-sighted
• sharp-eyed
• sharp-sighted
• subtle
• understanding

1. (adjective) of or relating to perception

• appreciation
• discernment
• perceptiveness
• taste
• comprehend
• perceive
• insight
• perceptiveness
• perceptivity

2. (adjective) having the ability to perceive or understand; keen in discernment

• discernment
• perceptiveness
• insight
• insight
• perceptiveness
• perceptiveness
• perceptivity
• perceptivity
• perceive
• perceptiveness

1. (adjective) of or relating to perception

• perception
• sensing

1. (adjective) having the ability to perceive or understand; keen in discernment

• unperceiving
• unperceptive