1. In a credulous manner
   - credulously

Antonym: unbelievingly

• inaugural address
• inaugurally
• inaugurate
• inauguration
• Inauguration Day
• inauspicious
• inauspiciously
• inauspiciousness
• inauthentic
• inboard
• inborn
• inborn error of metabolism
• inborn reflex
• inbound
• inbred
• inbreed
• inbreeding
• inbuilt
• inc.
• Inca
• incalcitrant
• incalculable
• incalculably
• incalescence
• incalescent