gimlet-eyed

adjective4

1. •
   Having piercing eyes, sharp-sighted.

   • 'D—n her gooseberry wig,' said the corporal, when she was out of hearing, 'that gimlet-eyed jade—mother adjutant, as we call her—is a greater plague to the regiment than provost-marshal, ... — 1814
2. •
   Having keen vision.
3. •
   Having eyes which are in constant motion; shifty-eyed.
4. •
   Having a squint.