To be mesmerized is to be captivated, spellbound, mesmerized, or even hypnotized. Some synonyms that could describe the state of being mesmerized could include "enchanted," "fascinated," or "entranced." They all suggest a complete absorption in something, whether it be a person, thing, or activity. Other possible synonyms could include "rapt," "absorbed," "engrossed," "enraptured," or "transfixed." Each of these words implies that the mesmerizing experience is so powerful that it takes over the senses, leaving one completely wrapped up in the moment. Whether it's falling under someone's spell or being totally consumed by an engrossing film or story, these are all states of mesmerization.