Comfy/ˈkʌmfi/ Definition 1 of 2Pro Tip 1/3Informal Use Best used in casual conversations or writing, not in formal documents. These jeans are really comfy for everyday wear. Pro Tip 2/3Positive Emotion Conveys a warm, positive feeling, often associated with home or relaxation. Watching movies on a comfy couch is my favorite weekend activity. Pro Tip 3/3Physical Comfort Usually refers to physical comfort, like softness or the right temperature. Be sure to bring your comfy sneakers for the long hike.