The phrase "staid the treadmill" refers to a monotonous and unexciting routine or lifestyle. Synonyms for this phrase include "dead-end job," "boring routine," "mundane existence," and "tedious monotony." These phrases convey the idea of being trapped in a cycle of repetitive and unfulfilling activities. Other similar phrases include "going through the motions," "stagnant lifestyle," and "repetitive ennui." While the phrase "staid the treadmill" is often used in relation to work or daily life, it can also refer to relationships, hobbies, or other areas of one's life in which they feel stuck and lacking in excitement.