Perceptiveness is a related term of shrewdness.
As nouns the difference between perceptiveness and shrewdness
is that perceptiveness is the state of being perceptive; acumen, discernment, insight while shrewdness is the quality of being shrewd.
perceptiveness
English
Noun
(-)
The state of being perceptive; acumen, discernment, insight
shrewdness
English
Noun
(shrewdnesses)
The quality of being shrewd.
An invented collective name for a group of apes.