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  1. not refined; not purified, as substances: unrefined metal.
  2. coarse or crude; lacking in refinement of taste, feeling, manners, language, etc.

Origin of unrefined

First recorded in 1585–95; un-1 + refined

Synonyms for unrefined

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of unrefined

British Dictionary definitions for unrefined


  1. (of substances such as petroleum, ores, and sugar) not processed into a pure or usable form
  2. coarse in manners or language
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

Word Origin and History for unrefined

1590s, "not refined in manners," from un- (1) "not" + past participle of refine (v.). Meaning "not free from gross matter" is recorded from 1610s.

Online Etymology Dictionary, © 2010 Douglas Harper