The phrase "jetted out" implies a fast, forceful movement, typically associated with travel or departure. Antonyms for this phrase would be words that denote a slower, gentler, or more stationary movement. These could include phrases such as "lingered behind", "took a leisurely stroll", or "meandered out". Other antonyms for "jetted out" might include "sauntered", "sashayed", or "ambling". These words all suggest a slower, more relaxed journey, which may be more appropriate for describing a departure that is less urgent or hurried. Overall, there are many antonyms for the phrase "jetted out" that can convey a range of moods and emotions, from leisurely to contemplative.