1. Lacking proof or substantiation

See also: unproved, unproven

• suasible
• suasion
• suasive
• suave
• suavely
• suaveness
• suavity
• sub
• sub judice
• sub-assembly
• sub-interval
• sub-rosa
• sub-Saharan
• Sub-Saharan Africa
• sub-test
• subacid
• subacute
• subacute bacterial endocarditis
• subacute inclusion body encephalitis
• subacute sclerosing leukoencephalitis
• subacute sclerosing panencephalitis
• subaerial
• subalpine
• subalpine fir
• subalpine larch