sunproof

== English == === Etymology === From sun +‎ -proof. === Adjective === sunproof (comparative more sunproof, superlative most sunproof) impervious to the rays of the sun === References === “sunproof”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Anagrams === unproofs