Added 10 October 2026 fineness noun Categories: Describing WordsRare Words noun ! Definition from Wiktionary (CC BY-SA). More about fineness at Wordnik → Where our words come from → The quality or degree of being fine. The ratio, in a precious metal, of the primary metal to any additives or impurities. The ratio of length to width of a ship, aircraft or rocket Related Words: delicacydaintinesschoicenessthinnesspowderinessluxegradefinessesubtletysophisticationacumencatch Back to today's word