The term "more troubling" suggests that a situation is already concerning, but has become even more so. Some synonyms for this phrase include "more alarming," "more distressing," "more ominous," and "more unsettling." These words convey a sense of unease and heightened concern, indicating that an issue has escalated or worsened. Other similar terms include "more vexing," "more disquieting," "more bothersome," and "more troublingly." No matter which word is used, the underlying message is clear: there is a growing problem that requires attention and action to address.