He is very perceptive of changes to the weather.
perceptive
you have no perceptive
Qualities are not just as they are in the objects but depend on the perceptive act.
The perceptive girl had a sense of keenness about her.
As a detective, he had a reputation for being perceptive and intuitive.
A perceptive person is able to pick up on subtle cues and understand situations quickly. For example, a perceptive individual may notice a change in tone of voice and recognize that something is bothering their friend, even if no words are spoken.
In this sentence, the best synonym for "perspicacious" would be "perceptive" as it conveys the idea of keen insight and understanding.
Your perceptive input has just cemented your position on the planning committee.
blithe
perceptivum
perceive; verb; to notice or discern
Synonyms for perceptive include astute, aware, sensitive, discerning, or keen.