The word "vexed" has several synonyms that can be used to express a similar meaning. One such word is "irritated," which denotes a feeling of annoyance or frustration. Another synonym for "vexed" is "annoyed," which also implies a sense of displeasure or frustration. "Aggravated" is another similar word, which describes a state of being annoyed or irritated to a significant degree. Other possible synonyms for "vexed" include "bothered," "irked," and "exasperated," all of which describe a negative emotional state. Ultimately, the choice of synonym depends on the context and the specific shade of meaning that the writer is trying to convey.