すかさず の訳語→ already immediately instantly promptly quick quickly simultaneously smoothly straight
すぐ の訳語→ close closely directly dutifully easily easy first instantaneously just minute now present presently pronto quite right simply soon swiftly then very willingly
つい の訳語→ actually always but day hard inadvertently involuntarily involuntary keep mere only slightly sometimes tend typically unintentionally unwisely
とたんに の訳語→ inevitably noticeably suddenly when
はっと の訳語→ abruptly alarm alert dead hurriedly jolt sharply short start startle sudden
思わず の訳語→ briefly impulsively instinctively unconsciously unwillingly visibly
即座に の訳語→ automatic impromptu readily
当然 の訳語→ deserve eventually expectantly fully logical naturally obviously perfectly proper reasonable should understandably well
反射的に の訳語→ gut reflectively
必然的に の訳語→ essentially invariably perforce