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

• Guatemala
• Guatemala City
• Guatemalan
• Guatemalan monetary unit
• guava
• guava bush
• Guayaquil
• guayule
• gubbins
• gubernatorial
• guck
• gudgeon
• gudgeon pin
• guelder rose
• Guenevere
• guenon
• guenon monkey
• guerdon
• guereza
• gueridon
• guerilla
• guerilla force
• Guernsey
• guernsey elm
• guerrilla