1. Unwilling to accept authority or dogma (especially in religion)
   - free-thinking, latitudinarian, undogmatical

See also: broad-minded

• ostensorium
• ostentate
• ostentation
• ostentatious
• ostentatiously
• ostentatiousness
• osteo-
• osteoarthritis
• osteoblast
• osteoblastoma
• osteochondroma
• osteoclasis
• osteoclast
• osteocyte
• osteodystrophy
• osteogenesis imperfecta
• osteogenic sarcoma
• Osteoglossidae
• Osteoglossiformes
• osteoid
• osteologer
• osteological
• osteologist
• osteology
• osteolysis