a person, event, or thing causing heartbreak.

Origin of heartbreaker

1655–65; heartbreak + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for heartbreaker



a person or thing that causes intense sadness or disappointment
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 heartbreaker

1660s, originally "a fetching lock of hair;" of persons, from 1863; agent noun from heartbreak.

Online Etymology Dictionary, © 2010 Douglas Harper