あてもなく (translations)→ aimless blindly haphazardly uselessly
のんびり (translations)→ easily good idleness pretty slow
ぼんやり (translations)→ absently aimlessly bit blankly blurred confusedly daze dim faintly foolishly fume listlessly misty numbly stupor uncertain unobservant vacantly vaguely
ぼんやりと (translations)→ abstraction barely distant distantly dully ghostlike hazily indefinite lazily miserably silently spectral
むなしく (translations)→ futilely impotently vainly
ものうげな (translations)→ half-hearted languid lazy
何気なく (translations)→ casual casually spontaneously unconscious unconsciously
見るともなしに (translations)→ absent-mindedly unintentionally