[ uhn-kleen ]
/ ʌnˈklin /

adjective, un·clean·er, un·clean·est.

not clean; dirty.
morally impure; evil; vile: unclean thoughts.
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

Related forms

un·clean·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unclean

British Dictionary definitions for unclean


/ (ʌnˈkliːn) /


lacking moral, spiritual, ritual, or physical cleanliness

Derived Forms

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