Love in idleness is a term used to describe a fleeting or infatuated love. It defines the idea of love that is not deep-rooted or long-lasting, but it can be used as a basis for finding other synonyms. For example, some synonyms for this term could be crush, fancy, passion, infatuation, or obsession. These words share the same notion of love that is intense, but not necessarily enduring. Love in idleness also has a Shakespearean origin. It was used in A Midsummer Night's Dream to describe the powerful love potion that makes people fall in love, but only for a brief time, adding a romantic and whimsical touch to its definition.