Quavery (adjective)

1. Shaky, tremulous, or unsteady.
2. Characterized by a quivering or vibratory quality.

Origin:

The word quavery comes from the verb "quaver" meaning to shake or tremble. it refers to something that is shaky, tremulous, or unsteady.

Examples:

1. His voice was quavery with emotion.
2. The quavery sound of the violin filled the concert hall.
3. Her hands were quavery as she tried to steady them.
4. The quavery image on the screen was caused by a loose cable.
5. The quavery notes of the piano made it difficult to follow the melody.