i Register
In some senses, perspicacious is marked as figuratively, obsolete. Watch for register when choosing this word.
perspicacious
UK /ˌpɜː.spɪˈkeɪ.ʃəs/ US /ˌpɜː.spɪˈkeɪ.ʃəs/
adj 2
Definitions
adj
1
Of acute discernment; having keen insight; mentally perceptive.
As a gay prisoner my incarceration has given me a perspicacious view of our judicial system.
2
Able to physically see clearly; quick-sighted; sharp-sighted.
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