penetrative

1. Of, pertaining to, or involving penetration.
   • c. 1606–1607, William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act IV, scene xiv], page 362 ↗, column 2:

     Would'ſt thou be window'd in great Rome, and ſee / Thy Maſter thus with pleacht Armes, bending downe / His corrigible necke, his face ſubdu'de / To penetratiue ſhame; [...]

     Would you be looking through a window in great Rome, and see / Your Master thus, with entwined arms [tied together], bending down / His docile neck, his face subdued / with shame penetrating through [i.e. blushing]; [...]

2. Having the ability to penetrate.
3. (figurative) display#Verb|Displaying insight or discrimination; acute#Adjective|acute.