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

See also: unreasonable

• conurbation
• Conuropsis
• Conuropsis carolinensis
• convalesce
• convalescence
• convalescent
• Convallaria
• Convallaria majalis
• Convallariaceae
• convect
• one-fifth
• one-flowered pyrola
• one-flowered wintergreen
• one-fourth
• one-half
• one-handed
• one-hitter
• one-horse
• one-horse town
• one-humped
• one-hundred-millionth
• one-hundred-thousandth
• one-hundredth
• one-liner
• one-man