Broth of a man is a phrase used to describe someone who is strong and hearty. Synonyms for this phrase could include terms like stalwart, robust, and vigorous. These words all suggest physical strength and a certain degree of resilience. Other synonyms for broth of a man might include resilient, tough, and sturdy. These words all suggest a sense of durability and toughness in the face of adversity. Ultimately, the phrase broth of a man is one that connotes a sense of strength and vigor, and the synonyms that we use to describe it should reflect those same qualities.