[ uhn-kleen ]
See synonyms for unclean on Thesaurus.com
adjective,un·clean·er, un·clean·est.
  1. not clean; dirty.

  2. morally impure; evil; vile: unclean thoughts.

  1. Chiefly Biblical. having a physical or moral blemish so as to make impure according to the laws, especially the dietary or ceremonial laws: an unclean animal; unclean persons.

Origin of unclean

before 900; Middle English unclene,Old English unclǣne.See un-1, clean

Other words for unclean

Other words from unclean

  • un·clean·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use unclean in a sentence

  • The following law, from the same book, will show how uncleanness for death or birth must be observed in the different casts: viz.

British Dictionary definitions for unclean


/ (ʌnˈkliːn) /

  1. lacking moral, spiritual, ritual, or physical cleanliness

Derived forms of unclean

  • uncleanness, noun

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