gradational

== English == === Etymology === From gradation +‎ -al. === Adjective === gradational (not comparable) By regular steps or gradations. Of or pertaining to gradation. ==== Derived terms ==== ==== Translations ==== === References === “gradational”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.