[ im-per-fek-shuh n ]
/ ˌɪm pərˈfɛk ʃən /


an imperfect detail; flaw: a law full of imperfections.
the quality or condition of being imperfect.

Origin of imperfection

1350–1400; Middle English imperfeccio(u)n < Late Latin imperfectiōn- (stem of imperfectiō) incompleteness. See im-2, perfection Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for imperfection

British Dictionary definitions for imperfection


/ (ˌɪmpəˈfɛkʃən) /


the condition or quality of being imperfect
a fault or defect
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 imperfection



late 14c., from Old French imperfeccion (12c.) and directly from Late Latin imperfectionem (nominative imperfectio), from imperfectus (see imperfect).

Online Etymology Dictionary, © 2010 Douglas Harper