Dillydallier refers to someone who procrastinates or wastes time on trivial matters. If you're looking for alternative words to describe such a person, you can use words like loiterer, dawdler, waster, dallier, lag, idler, or slacker. These words all encapsulate the behavior of someone who is taking too much time to complete a task or delaying action. Alternatively, you can use words like flâneur, saunterer, or stroller to describe someone who is taking a leisurely pace without any intention to get work done. While there are numerous synonyms available, the choice of words ultimately depends on the nuances of the context.