When it comes to describing someone or something that exhibits intelligence, wisdom, or good judgment, there are a number of synonyms that can be used in place of "sound sense." These might include terms like "prudence," "astuteness," "cunning," "sagacity," or "shrewdness." Other options might include "discernment," "perception," "reasoning," "logic," or "coherence." Ultimately, the key to finding the right synonym is to consider the connotations and nuances associated with each term, and to choose the one that best fits the context and tone of your writing or speech.