Constructed, fastened, or fitted so as to prevent the passage or leaking of water.

Solidly constructed so as to keep out wind: chiefly of a building; also of a vessel = airtight, adj.

wind and water. (a) in between (or betwixt) wind and water (Nautical), referring to that part of a ship's side which is sometimes above water and…

Impervious to the weather.

With adjectives expressing imperviousness or power of resistance (to the weather), as weather-free, weather-resistant, weather-resisting, weather-…

= wind-tight, adj. 1.

Impermeable to air. Also figurative: closed off, impenetrable.

tight enough to resist the ingress or egress of steam; also quasi-adv.

Waterproof, impervious to water; (often) spec. made waterproof by the application of an agent or substance. Also: provided with, or wearing…

Sealed, fastened, or fitted so as to prevent the passage or leakage of gas; impermeable to gas. Cf. airtight, adj. 1.

(a) impervious to acid; capable of resisting attack or degradation by acid; (b) disused = acid-fast adj.

Impermeable to (esp. poisonous) gas; gas-tight.

of such a degree of tightness as to prevent oil from passing through.

impervious to mud.

(of a joint, container, etc.) tightly enough constructed to prevent the passage of a fluid under pressure.

fitted so as to be proof against draughts.

= airtight, adj. adv.

impermeable to splashes.

impervious to vapour.