The Imaginary Invalid ( ) is a three-act comédie-ballet by the French playwright Molière with dance sequences and musical interludes by Marc-Antoine Charpentier. It premiered on 10 February 1673 at the Théâtre du Palais-Royal in Paris and was originally choreographed by Pierre Beauchamp. The play is also known as "The Hypochondriac", an alternative translation of the French title.