1. An act (or failure to act) that disappoints someone
   - disappointment

Type of: failure

• nonadaptive
• nonaddictive
• nonadhesive
• nonadjacent
• nonadsorbent
• nonadsorptive
• nonage
• nonaged
• nonagenarian
• nonaggression
• nonaggressive
• nonagon
• nonalcoholic
• nonaligned
• nonalignment
• nonalinement
• nonallele
• nonappearance
• nonappointive
• nonarbitrable
• nonarbitrary
• nonarboreal
• nonassertive
• nonassociative
• nonastringent