Rustproof (adjective)

Resistant to the formation of rust or corrosion.

Origin:

Combination of the words 'rust' and 'proof' which means 'resistant to rust'.

Examples:

1. This car is rustproof due to the high-quality paint used.
2. The stainless steel cutlery is rustproof and durable.
3. The bicycle has rustproof components for a long-lasting performance.
4. The watch has a rustproof case to keep it functioning for years.
5. The garden furniture is rustproof for outdoor use and protection from the elements.