Quaky is an adjective that refers to something that is shaky or trembling. It can also refer to a situation or event that is uncertain or unsteady. Some synonyms for the word quaky include wobbly, shaky, unsteady, unstable, jittery, twitchy, trembling, and shivering. These words can be used to describe a wide range of things, from physical objects that are weak or unstable, to emotional states that are anxious or nervous. Using synonyms for quaky can add variety and depth to your writing, helping to convey a clear and accurate message to your readers.