あっさり (translations)→ brightly carelessly casual dryly easily effortlessly entirely freely handsomely impatiently just off-hand quickly readiness short shortly simply succinctly thinly unceremoniously willing
あっさりと (translations)→ airily artlessly briskly cool deadpan eagerly fast flatly
さりげなく (translations)→ absently careless casually casualness covert covertly delicately discreet discreetly everyday inconspicuous innocently nonchalantly restrained unobtrusively unselfconsciously vague
そっけなく (translations)→ briefly brusquely coldly coolly curt hastily indifferently insipidly lightly tightly
淡々と (translations)→ blithely calmly dully evenly levelly philosophically politely quietly
