Lucy in the Sky with Diamonds is an iconic song by The Beatles that has been a timeless classic over the years. If you are looking for synonyms for the phrase "lucy in the sky with diamond", you can consider using terms such as a dreamlike state, a surreal experience, a psychedelic journey, and a mind-bending escapade. These words aptly capture the essence of the song's narrative, which is all about escaping reality and experiencing life in a mystical and magical way. Other synonyms that could fit the song's theme may include mystical, enchanting, otherworldly, and unearthly. Overall, "Lucy in the Sky with Diamonds" is a masterpiece that has inspired creative interpretations and synonyms over the years.