perspicacity
keenness of understanding or insight
Root
- spec / spic: look or see
Other words with the spec / spic root
- circumspect: cautious and careful
- conspicuous: easy to notice or clearly visible
- inspection: careful looking or examination
- perspicacious: keenly perceptive
- specious: seemingly plausible but actually misleading
- spectacle: something striking to see
- spectacles: glasses used for seeing
Perspicacity is sharp seeing as a noun: the mind sees through the surface.
Her perspicacity let her spot the flaw before anyone else noticed it.