1. The quality or state of being stern.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sterness,
• tenness,
• stepness,
• serdness,
• suthernness,
• southrnness,
• starness,
• sternes,
• aternness,
• zternness,
• sternnes,
• masterlness,
• seerdness,
• uterness,
• sternned,
• stenniss,
• Stennes,
• sternshets,
• sterines,
• steralness

• sterne,
• strings,
• styron,
• staring,
• strange,
• strenuous,
• starns,
• sturnus,
• Strang,
• sterna,
• stermer,
• storminess,
• sternly,
• Strine,
• streng,
• strewn,
• Storino,
• stringent,
• stringently,
• Storing,
• sternpost,
• Stearn,
• strain,
• strangle,
• stranger,
• storms,
• sturman,
• strained,
• Stearns,
• strong,
• strangles,
• stringency,
• starner,
• strong suit,
• strunk,
• strome,
• Strawn,
• starnes,
• southernness,
• string,
• sturnidae,
• strand,
• Sterner,
• sterninae,
• Sternisha,
• strangeness,
• stranded,
• strangely,
• Stransky,
• stringer,
• sternal,
• sternum,
• stringy,
• styrene,
• sterns,
• strung,
• strainer.

The adjective form of the word "sternness" is "stern".

The plural of the "sternness" can be the "sternnesses".

The singular of the "sternness" can be the "sternness".