1. Lacking requisite official documentation or endorsement

Antonym: certified

• gifted
• gig
• giga-
• gigabit
• gigabyte
• gigacycle
• gigacycle per second
• gigaelectron volt
• gigaflop
• gigahertz
• gigantic
• gigantically
• gigantism
• Gigartinaceae
• gigawatt
• gigayear
• giggle
• giggler
• giggly
• GIGO
• gigolo
• gigot
• gigue
• Gikuyu
• Gila