unimpairable

== English == === Etymology === From un- +‎ impairable. === Adjective === unimpairable (comparative more unimpairable, superlative most unimpairable) That can not be impaired. === References === “unimpairable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.