1. Based primarily on surmise rather than adequate evidence
   - conjectural, divinatory, hypothetical, supposed, suppositional, suppositious, supposititious

See also: theoretic, theoretical

• cupric acetate
• cupric sulfate
• cupric sulphate
• cupriferous
• Cuprimine
• cuprite
• cupronickel
• cuprous
• cupular
• cupulate
• cupule
• Cuquenan
• Cuquenan Falls
• cur
• curability
• curable
• curableness
• curacy
• curandera
• curandero
• curare
• curassow
• curate
• curate cycloid
• curative