すとん

adverb taking the 'to' particle, adverb

thump; with a thud

Mimetic word for a heavy object falling or landing with a dull, solid sound.

• 大おおきな石いしがすとんと落おちた。

  A large rock fell with a thud.

adverb taking the 'to' particle, adverb

straight down; hanging straight

Describes something hanging or dropping vertically without obstruction, often with a sense of smoothness or suddenness.

• カーテンがすとんと床ゆかまで届とどいている。

  The curtain hangs straight down to the floor.