The term 'Symbol of Stubbornness' can be represented by three words: STONE (5 letters), ASS (3 letters), and MULE (4 letters). STONE is a hard, durable material that has been used for centuries to build structures and monuments. It is often seen as a symbol of strength and resilience. The ASS is a domesticated animal known for its stubbornness and refusal to obey commands. Finally, the MULE is a hybrid of a donkey and a horse, and is also known for its stubbornness and refusal to obey commands. All three of these symbols represent the idea of stubbornness and resilience.