Synonyms for Noncombustible:
adj.
•fireproof (adjective)incombustible, nonflammable, fire-resistant.
n.
•noncombustible (noun)fire-resisting, incombustible, flameproof, fireproof, nonflammable, fire-resistive, flame-retardant, fire-retardant, fire-resistant.
Other synonyms:
•adj.
fireproof.
•n.
incombustible.