1. Incapable of being justified or explained
   - indefensible, unjustifiable, unwarrantable, unwarranted

See also: inexcusable

• calliope
• Calliophis
• calliopsis
• calliper
• Calliphora
• Calliphora vicina
• Calliphoridae
• callipygian
• callipygous
• Callirhoe
• Callirhoe digitata
• Callirhoe involucrata
• Callirhoe triangulata
• Callisaurus
• Callisaurus draconoides
• Callistephus
• Callistephus chinensis
• callisthenics
• Callisto
• Callithricidae
• Callithrix
• callithump
• callithump parade
• callithumpian
• Callitrichaceae