When it comes to expressing the discomfort of a boring pain, there are many synonyms that can be used to convey the sensation more accurately. Monotonous ache, repetitive twinge, and dull throb are all phrases that can help to describe the persistent pain that one may experience. Additionally, the terms constant discomfort, tedious ache, and unvarying distress can also be used to express the unvarying nature of the pain. Other synonyms for the phrase boring pain include unstimulating pain, uninteresting distress, and wearisome feeling. By using variations of these words, one can convey the emotional and physical aspects of the pain more precisely.