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.
Impudent.
Having rugged physical strength; inured to fatigue or hardships.
Able to survive adverse growing conditions.
Brave and resolute.
A hardy, resilient animal or plant.
Something troublesome or difficult to handle.
A person who can endure physical or mental hardship; a hardened, strong-willed person.