Impudent.
Having rugged physical strength; inured to fatigue or hardships.
Able to survive adverse growing conditions.
Brave and resolute.
Anything, especially a plant, that is hardy.
A blacksmith's fuller or chisel, having a square shank for insertion into a square hole in an anvil, called the hardy hole.
Having a quality that arouses suspicion.
Having signs that suggest a design problem; having a code smell.
Having a bad smell.
a Short Magazine Lee Enfield rifle or one of its derivatives.