The phrase "more la de da" is often used to describe someone who is pretentious or affected. There are many synonyms for this term, including ostentatious, grandiose, pompous, affected, and pretentious. Other words that could be used include showy, flashy, flamboyant, ornate, and extravagant. Each of these words has a slightly different connotation, but all convey a sense of someone who puts on airs and tries to be more important or refined than they really are. Whether you're trying to avoid being "more la de da" yourself or just looking for a new way to describe someone who is, these synonyms will help you find the right word for the occasion.