1. Not accompanied by pain sensations
   "pain-free surgery"
   - unpainful

See also: painless

• nonagon
• nonalcoholic
• nonaligned
• nonalignment
• nonalinement
• nonallele
• nonappearance
• nonappointive
• nonarbitrable
• nonarbitrary
• nonarboreal
• nonassertive
• nonassociative
• nonastringent
• nonattendance
• nonattender
• nonautonomous
• nonbearing
• nonbeing
• nonbeliever
• nonbelligerent
• nonbiodegradable pollution
• noncallable bond
• noncaloric
• noncandidate