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.
古い机ががたついて、字が書きにくい。
The old desk is wobbly, making it hard to write.
道が悪
The road was rough, and the car rattled.