What is another word for "earnestness"?

Roget's Thesaurus (1911) lists these synonyms for "earnestness": about, all, aloof, anaphrodisia, anaphrodisiac, anorexia, anorexy, antaphrodisiac, anything, apathy, aught, care, careless, cold, coldness, cool, could, cucumber, desire, disdain, fig, for, frigid, half-hearted, have, inactivity, inappetency, inattention, indifference, indifferent, insensibility, insipid, insouciance, insouciant, interest, lackadaisical, less, light, like, listless.