perceptivity(n = noun.feeling) insight, perceptiveness - a feeling of understanding;
is a kind of sensibility
Derived form adjective perceptive₂

   The quality or state of being perceptive; power of perception. Locke. [1913 Webster]

N  physical sensibility, sensibility, sensitiveness, physical sensibility, feeling, impressibility, perceptivity, aesthetics, moral sensibility, sensation, impression, consciousness, external senses, sensible, sensitive, sensuous, aesthetic, perceptive, sentient, conscious, acute, sharp, keen, vivid, lively, impressive, thin-skinned, to the quick, the touch'd needle trembles to the pole.