The phrase "same-old-same-old" is commonly used to describe tedious or repetitive situations. There are several synonyms that convey a similar sentiment, such as "mundane," "routine," "monotonous," and "tedious." Other options include "ho-hum," "unvarying," and "unexciting." These words can be used to describe anything from a boring job to a predictable relationship. When looking for a fresh way to describe something that feels stale or uninteresting, it can be helpful to turn to these synonyms for inspiration. Using different words to convey the same concept can also help keep writing or conversation engaging and dynamic.