American Heritage Dictionary
(1)
Century Dictionary
(3)
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
Perhaps our perspicacious President does, too, and will have to swallow his gall and put me back where I belong. "— Isabelle
"Not for nothing had he acquired a reputation as a perspicacious leader as well as a shrewd trader.— The Cat is a Metaphor
Perspicacious has been looked up 1092 times, favorited 14 times, listed 148 times, and commented on 4 times.

American Heritage Dictionary (1)
Century Dictionary (1)
Bubble size: how much this word was used in a year
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You can expect to see this word about once a year.
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