Minor matters are easily overlooked, but often hold great importance. Synonyms for this phrase include trivialities, small details, inconsequential issues, minutiae, and petty concerns. These terms all refer to things that may seem insignificant, but can have a big impact if ignored. Additionally, phrases such as small potatoes, small beer, and small fry can all be used as synonyms for minor matters in more colloquial language. Whether you are dealing with small details in a project or everyday insignificant issues, it's important to remember that even minor matters can impact the bigger picture. So pay attention to the details, no matter how small they may seem.