[ fahyn-nis ]
See synonyms for fineness on
  1. the state or quality of being fine.

  2. the proportion of pure precious metal in an alloy, often expressed in parts per thousand.

Origin of fineness

late Middle English word dating back to 1400–50; see origin at fine1, -ness

Words Nearby fineness Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use fineness in a sentence

British Dictionary definitions for fineness


/ (ˈfaɪnnɪs) /

  1. the state or quality of being fine

  2. a measurement of the purity of precious metal, expressed as the number of parts per thousand that is precious metal

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012