Smokeproof is a term used to describe something that is resistant to smoke or can prevent smoke from entering an enclosed space. There are several synonyms for smokeproof that can be used in different contexts. Smoke-resistant, smoke-tight, and smoke-free are a few examples of synonyms that convey a similar meaning. Smoke-guarded, smoke-proofed, and smoke-blocked are also useful in describing things that are designed to prevent smoke from escaping or entering. In some cases, terms like fire-resistant and fire-retardant can be used interchangeably with smokeproof to indicate that something is designed to resist the spread of fire and smoke.