1. (of theories etc) incapable of being defended or justified
   - indefensible

See also: unreasonable

• Cichorium
• Cichorium endivia
• Cichorium intybus
• Cicily Isabel Fairfield
• Cicindelidae
• cicisbeo
• Ciconia
• Ciconia ciconia
• Ciconia nigra
• Ciconiidae
• Ciconiiformes
• Cicuta
• Cicuta verosa
• CID
• Cidade de Praia
• cider
• cider gum
• cider mill
• cider vinegar
• ciderpress
• cig
• cigar
• cigar band
• cigar box
• cigar butt