roundness (n.)

• annulation
• artlessness
• belly
• bluffness
• bluntness
• broadness
• brusqueness
• candidness
• candor
• circularity
• convexity
• cylindricality
• directness
• forthrightness
• frankness
• freedom
• freeness
• genuineness
• globosity
• ingenuousness
• openness
• outspokenness
• plainness
• rotundity
• rotundness
• sincerity
• sphericalness
• sphericity
• straightforwardness
• unconstraint
• unrestraint