Ro·tund'i·ty noun [ Latin rotunditas : confer French rotondité .] 1. The state or quality of being rotu...; roundness; sphericity; circularity. « Smite flat the thick rotundity o'the world!» Shak. 2. Hence, completeness; entirety; roundness... Found on http://www.encyclo.co.uk/webster/R/96