1. Of biological parents not married to each other
   - illegitimately 
2. Of unwed parents
   "he was born out of wedlock"
   - outside marriage

Encyclopedia: Out of wedlock

• wooden-headed
• woodenly
• woodenness
• woodenware
• woodfern
• woodgrain
• woodgraining
• woodhewer
• Woodhull
• woodiness
• woodland
• woodland caribou
• woodland oxeye
• woodland star
• woodland white violet
• woodlet
• woodlouse
• woodman
• woodpecker
• woodpile
• Woodrow Charles Herman
• Woodrow Wilson
• Woodrow Wilson Guthrie
• woodruff
• woods