There are several synonyms for the phrase "make others bored". One common synonym is "tedious," which suggests that something is dull or monotonous. Another synonym is "mundane," which implies that something is repetitive or lacking excitement. "Uninspiring" is also a synonym, suggesting that something fails to evoke passion or creativity in others. "Repetitive" is another synonym, emphasizing the repetitive nature of something that might cause boredom. Along with these synonyms, "tiresome" and "wearisome" can also be used to describe something that causes others to become bored or disinterested.