imperceivable

== English == === Etymology === From im- +‎ perceivable. === Adjective === imperceivable (comparative more imperceivable, superlative most imperceivable) that cannot be perceived; imperceptible ==== Related terms ==== === References === “imperceivable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.