Sudden Desire can be described as an intense, unexpected URGE or IMPULSE. It is often characterized by a sudden, strong feeling of wanting something that may not have been previously considered. The term can be broken down into three words: URGE (4 letters), Whim (4 letters), and IMPULSE (7 letters). An URGE is an intense, often irresistible desire or craving for something. A Whim is an unpredictable or sudden change of mind or fancy. An IMPULSE is a sudden strong and unreflective URGE to act. Together, these three words form the term Sudden Desire, which describes an intense, sudden, and often irresistible URGE or craving.