Rationality is a term which refers to the ability to think logically and make decisions based on reason and evidence. There are many synonyms for rationality, including soundness, coherence, logic, reasoning, practicality, and sensibleness. Other synonyms for rationality include common sense, objectivity, and critical thinking. Each of these terms implies the same basic meaning as rationality, but may reflect a slightly different emphasis on the importance of evidence, reasoning, or practicality. Regardless of the exact synonym used, the concept of rationality is essential to making good decisions in both personal and professional contexts.