adjective.
Resistant to rust, oxidation and corrosion.
verb.
To make resistant to rust, such as by applying a coating.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
treated against rusting
Word Usage
"If you get blue steel and have it Cerakoted (like mine is) at Ultracoatingsinc it will be more rustproof than stainless steel and very pleasing to the eye."