そっけなく (translations)→ absently briefly brusquely carelessly coldly curt flatly hastily indifferently insipidly lightly matter-of-factly shortly simply tightly
ひややかに (translations)→ cruelly hard icily
事もなげに (translations)→ easily ever-ready nonchalantly
平然と (translations)→ calmly detachment evenly imperturbably unconcerned unmoved
冷静に (translations)→ calm clearly critically dispassionately rational rationally reservedly silently soberly
