1. In an uncalled-for manner
   "he insulted us gratuitously"

See also: gratuitous

• Ophioglossum pendulum
• ophiolatry
• Ophiophagus
• Ophiophagus hannah
• Ophisaurus
• ophite
• Ophiuchus
• Ophiurida
• Ophiuroidea
• ophryon
• Ophrys
• Ophrys apifera
• Ophrys insectifera
• Ophrys muscifera
• Ophrys sphegodes
• ophthalmectomy
• ophthalmia
• ophthalmia neonatorum
• ophthalmic
• ophthalmic artery
• ophthalmic vein
• ophthalmitis
• ophthalmologist
• ophthalmology
• ophthalmoplegia