舒适 (shū shì) is an adjective meaning 'comfortable' or 'cozy'—describing physical ease, pleasant surroundings, or a relaxed mental state. The first character 舒 means 'to stretch out', 'to relax', or 'to be at ease'; the second, 适, means 'suitable', 'fitting', or 'appropriate'. Together, they convey the idea of something being perfectly suited to one’s physical or emotional needs—like a well-designed chair, a quiet room, or a calm mood. It’s commonly used to describe environments, objects (e.g., clothing, furniture), experiences, and even abstract conditions such as 'a comfortable relationship'.

This word is neutral in register and widely used in both spoken and written Chinese. It often appears in descriptive phrases like 舒适的环境 (a comfortable environment), 舒适的温度 (a comfortable temperature), or 舒适的生活 (a cozy life). Unlike some adjectives, it rarely functions as a verb or noun on its own—it almost always modifies nouns or follows verbs like 感到 (to feel) or 显得 (to appear).