cagey

adjective2

1. •
   Wary, careful, shrewd.

   • We move like cagey tigers / Oh, we couldn't get closer than this — 1983
2. •
   Uncommunicative; unwilling or hesitant to give information.

   • During a long interview about the startup, Bader and his co-founder Sean Dadashi were cagey about exactly how Ikaria works, as it’s still in development. — 2020