born out of wedlock
From Longman Dictionary of Contemporary Englishborn out of wedlockborn out of wedlock old useSSCif a child is born out of wedlock, its parents are not married when it is born → wedlockExamples from the Corpusborn out of wedlock• Babies born out of wedlock are commonplace.• A baby born out of wedlock was a horrible sin for which there was no forgiveness.• Unlike the synonym, MAMzer, BENKert connotes love child, not one merely born out of wedlock.• Long ago, an aunt told me that my grandmother wash born out of wedlock.