Seriousness; serious intention, as opposed to jest or play; (formerly also) †a serious matter (obsolete). Now rare.

Gravity of mind or demeanour; seriousness, soberness, staidness. Obsolete (but cf. in (good, sober, serious) sadness at phrases).

Seriousness, earnestness; gravity of disposition. Obsolete. rare.

Seriousness. Cf. seriosity, n.

Demure quality, demureness.

The quality or state of being serious, now esp. in a pompous or affected way; (excessive) seriousness.

Weighty dignity; reverend seriousness; serious or solemn conduct or demeanour befitting a ceremony, an office, etc.; staidness. In later use with…

The state or quality of being demure.

The quality or condition of being serious or solemn; earnestness of purpose, thought, or behaviour.

The state or quality of being solemn; solemnity.

Staidness, gravity, seriousness; soundness or saneness of judgement, etc.

Sobriety of character, manner, or conduct.

The quality or state of being grave; seriousness, solemnity and sobriety of behaviour; gravity.

Gravity.

The state or quality of being earnest; (formerly also) †vehemence, great ardour or passion (obsolete).

The condition or quality of being substantial; solidity, firmness, soundness.

The state or character of being solemn or serious; impressiveness; gravity; a solemn utterance or statement.