The term "more unflustered" implies a state of being calm and composed. Antonyms, on the other hand, can be used to express the opposite meaning. Some possible antonyms for "more unflustered" could include words such as "agitated," "flustered," "panicked," "frantic," "nervous," "jittery," or "anxious," among others. These words are often used to describe situations or individuals who are upset, stressed, or overwhelmed. By using antonyms for "more unflustered," we can more accurately describe a situation or person's emotional state, allowing for clearer communication and understanding.