1. (n.) The quality or state of being round in shape; as, the roundness of the globe, of the orb of the sun, of a ball, of a bowl, a column, etc.

2. (n.) Fullness; smoothness of flow; as, the roundness of a period; the roundness of a note; roundness of tone.

3. (n.) Openness; plainness; boldness; positiveness; as, the roundness of an assertion.

annularity annulation artlessness belly bluffness bluntness broadness brusqueness candidness candor circularity convexity cylindricality directness forthrightness frankness freedom freeness genuineness globosity globularity ingenuousness openheartedness openness orbicularity outspokenness plain dealing plain speaking plainness plainspokenness rotundity rotundness sincerity sphericality sphericalness sphericity spheroidicity spheroidity straightforwardness unconstraint unreserve unrestraint