a man who is viewed as an ideal romantic partner or potential spouse (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).
Origin of Mr. Right
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for mr right
informal the man considered by a woman to be her perfect marriage partner
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