Mundane refers to something that is boring, ordinary, or lacking in excitement. Synonyms for mundane include common, usual, routine, and monotonous. Monotonous means something that is tedious and repetitive, while ordinary denotes something that is expected or typical. Banal and trite can be used to describe something that is lacking in originality or creativity. Dull and uneventful are also synonymous with mundane and describe something that is lacking in interest or excitement. Another synonym for mundane is prosaic, which refers to something that is commonplace or lacking in imagination. In summary, there are numerous synonyms for the word mundane, which can be used to describe anything that is commonplace or unexciting.