leery

adjective3

1. •
   Cautious, suspicious, wary, hesitant, or nervous about something; having reservations or concerns.

   • Since he was bitten by a dog when he was young, he has always been leery of animals.
2. •
   Leering; lecherous or unpleasant.

   • And there was a particularly brutal villain with leery eyes, ugly mouth, with one tooth gone, and an iron jaw like a hull-dog's. — 1902
3. •
   (slang, no longer used) Sly; artful; knowing.