A perceptive person is able to understand things quickly and easily. They are usually able to see things that other people miss.
She is very perceptive, which is why she is such a good detective.
The perceptive dog could tell that there was something wrong with the dog.
adjective
having the ability to perceive or understand; keen in discernment
ADJ
of or relating to perception
1
It is lacking in perception and circumspection.
2
The airflow is perceptibly diminished.
3
The atmosphere chills perceptibly.
4
The intent and the perception are at odds.
5
The perception is of the author alone.
6
The perception of reality crumbles.
7
This is the principle of the anticipations of perception.
8
He is beyond the perception of the senses.
9
The bolding just has to be perceptible.
10
The improvement was quite perceptible and acceptable.