ぐらつく

godan verb (-ku), intransitive verb

be unsteady; wobble; shake

Describes physical instability: a thing that is not firmly fixed and moves or shakes. Often used for furniture, structures, or a person's unsteady stance.

• 机つくえの脚あしがぐらついている。

  The desk leg is wobbly.

• 地じ震しんで棚たながぐらついた。

  The shelf shook in the earthquake.

godan verb (-ku), intransitive verb

waver; be unsettled

Used for emotions, thoughts, or resolve that are unstable or faltering. Common in phrases like 気持ちがぐらつく.

• 彼かれの言こと葉ばで決けっ心しんがぐらついた。

  My resolve wavered because of his words.

• 気き持もちがぐらついて、どうしたらいいかわからない。

  My feelings are unsettled and I don't know what to do.