Tremulousnesses is not a widely used term in day to day communication. However, it can be useful to have a variety of synonyms or alternative words that have similar meanings. Some possible synonyms for tremulousnesses include shakiness, quivering, trembling, jitteriness, quavering, shuddering and unsteady. All of these words imply a physical or emotional state of being nervous, frightened, or uncertain. While some synonyms may be more specific to certain contexts, they all essentially convey the same or a closely related meaning the term tremulousnesses. Therefore, using a variety of synonyms can enhance the clarity in communication and avoid unintentional repetition of the same word repeatedly.