While uncommon, there are a few synonyms for the word "moonily". One option is "dreamily", which can also convey a sense of being lost in thought or imagination. Another choice is "lunatically", which has a slightly different connotation in that it implies behaving in a crazy or irrational manner. Similarly, "lunatically" can also mean affected by the moon, as in the belief in werewolves transforming under a full moon. Finally, "astrally" is another potential synonym for "moonily", implying a connection to the stars and cosmos. However, "moonily" remains a unique and specific word to describe a dreamy or ethereal state associated with the moon.