Intense longing is a powerful emotion that can be described in many ways. The crossword solutions for this term are THIRST (6 letters), LUST (4 letters), YEN (3 letters), and BURNINGDESIRE (13 letters). THIRST is a strong desire for something, usually a liquid. LUST is an intense craving or longing, often for sexual gratification. YEN is a strong desire or inclination for something. Burningdesire is an intense and passionate longing for something. All of these words describe the feeling of intense longing.