Definition of seriousness:
coolness, soberness, solemnness, earnest, unassumingness, sedateness, weight, sobersidedness, importance, calmness, heavy, gaiety, staidness, sobriety, work, enormity, serious-mindedness, thoughtfulness, earnestness, graveness, jollity, distressfulness, solemnity, weightiness, gravity, momentousness, fun, intentness, sincerity, important.
- "The Altar Steps", Compton MacKenzie.
- "Explorers of the Dawn", Mazo de la Roche.
- "The Bent Twig", Dorothy Canfield.