がたつく

godan verb (-ku), intransitive verb

rattle; be shaky; be unsteady; be bumpy

Describes physical objects that are loose, wobbly, or produce a rattling sound, as well as metaphorical instability. Often used for furniture, vehicles, or situations that feel unsettled.

• 古ふるい机つくえががたついて、字じが書かきにくい。

  The old desk is wobbly, making it hard to write.

• 道みちが悪わるくて、車くるまががたついた。

  The road was rough, and the car rattled.