seven-year itch

[ sev-en-yeer ]
/ ˈsɛv ɛnˌyɪər /

noun

the temptation to have an affair, held to become a hazard in the seventh year of marriage.

Origin of seven-year itch

An Americanism dating back to 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for seven-year itch

seven-year itch


noun

informal a tendency towards infidelity, traditionally said to begin after about seven years of marriage
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