(n.) The quality of being frank; candor; openness; ingenuousness; fairness; liberality.

accessibility approachability artlessness austerity baldness bareness big mouth bluffness bluntness broadness brusqueness candidness candor coarseness common speech communicativeness conversableness directness earthiness effusion effusiveness extroversion flow of words flowing tongue fluency fluent tongue flux de bouche flux de paroles flux of words forthrightness freedom freeness garrulity garrulousness gassiness genuineness gift of gab glibness gregariousness grossness gush gushiness homespun household words ingenuousness leanness long-windedness loose tongue loquaciousness loquacity matter-of-factness naturalness openheartedness openness outgoingness outspokenness plain English plain dealing plain speaking plain speech plain style plain words plainness plainspokenness prolixity prosaicness prosiness raciness rankness rawness restrainedness roundness rustic style saltiness severity simpleness simplicity sincerity slush soberness sociability spareness spate of words spiciness starkness straightforwardness talkativeness unadorned style unadornedness unaffectedness unconstraint uncouthness unimaginativeness unpoeticalness unrepression unreserve unreservedness unrestraint unrestriction unreticence unsecretiveness unsuppression untaciturnity verbosity vernacular volubility vulgarity windiness