Sternness(n.) The quality or state of being stern.
Thesaurus Entries
Spartanism, abbreviation, acerbity, acidity, acidulousness, acridity, acridness, acrimony, asperity, astriction, astringence, austerity, authoritarianism, bite, bitingness, bitter pill, bitterness, bottleneck, causticity, cervix, circumscription, coarctation, compactedness, compaction, compression, compressure, concentration, condensation, consolidation, constriction, constringency, contraction, contracture, curtailment, cuttingness, decrease, demandingness, diminuendo, discipline, edge, exactingness, fierceness, gall, gall and wormwood, grimness, grip, hardness, harshness, hourglass, hourglass figure, inclemency, isthmus, keenness, knitting, meticulousness, mordacity, mordancy, narrow place, narrowing, neck, piquancy, poignancy, point, puckering, pungency, pursing, reduction, regimentation, rigid discipline, rigor, roughness, ruggedness, severity, sharpness, shortening, solidification, sourness, sternness, sting, stranglement, strangulation, striction, strictness, stricture, stridency, stringency, systole, tartness, teeth, toughness, trenchancy, ungentleness, vehemence, violence, virulence, wasp waist, wrinkling