"Skitty" is a colloquial term used to describe someone who is jittery, nervous, or easily startled. There are several synonyms for this word, including fidgety, jittery, nervous, anxious, jumpy, uneasy, edgy, restless, and hyperactive. Each of these words shares a similar meaning to "skitty," but they may be more specific or nuanced in their connotations. For example, someone who is fidgety may be constantly moving or tapping their feet, while someone who is anxious may have a specific source of worry or distress. Overall, these synonyms can be helpful for expressing different shades of meaning in describing someone who is feeling on edge.