こそこそと の訳語→ bashfully low unobtrusively
こっそり の訳語→ creep discreetly furtively privately quietly sott-voce surreptitiously unperceived unseen
しのびやかに の訳語→ insidiously secretly
じわじわと の訳語→ inchoate ponderously relentlessly slowly steadily
そっと の訳語→ calmly carefully cautiously covertly delicately ease furtive gently gingerly guardedly lightly little loosely politely quick quickly quiet silently slight softly stealthy tenderly tentative
ひそかに の訳語→ mentally private unadvertised
