"Wrapped in thought" is a phrase that describes the state of being deeply engrossed in one's own thoughts. Some synonyms for this expression include lost in thought, absorbed in contemplation, lost in reverie, deep in reflection, and preoccupied with inner musings. Depending on the context, other options may include in a contemplative mood, absorbed in thought, or lost in introspection. All of these phrases convey the idea of being in a state of deep thought or meditation, and can be used to describe someone who is introspective, reflective, and lost in thought. Ultimately, the best synonym to use depends on the specific context in which it is being used.