If you're looking for synonyms for the word "psychedelically," you might consider using words such as "mind-bendingly," "trippily," or "hallucinatorily." Other options include "perceptually," "cognitively," or "perceptively." Each of these words conveys a sense of altered perception, whether it's through the use of mind-altering substances, intense visual or auditory stimulation, or deep contemplation. Depending on the context, one of these words might be a better fit than "psychedelically," which can sometimes carry a connotation of drug use or countercultural ideologies. Whichever word you choose, make sure it accurately conveys the tone and meaning you want to express.