The term EXEMPLAR OF TOUGHNESS can be represented by two crossword solutions: BEAR and NAILS. The term 'exemplar of toughness' is often used to describe someone or something that is strong and resilient in the face of adversity. The word 'BEAR' is often used to refer to a large, powerful mammal that is known for its strength and ferocity. Similarly, nails are small but strong objects that are used to hold things together and are difficult to break. Together, these two words represent the idea of toughness and resilience.