There are a number of synonyms that can be used in place of the term "in grates" in a variety of contexts. Some common alternatives include "displeases," "vexes," "angers," "irritates," and "frustrates." Each of these words conveys a sense of being annoyed or bothered by something, but may be more or less appropriate depending on the situation at hand. Other possible synonyms might include "enchants," "delights," or "enthralls," which would imply a positive response to something. Ultimately, the choice of words depends on the tone and context of the message being conveyed, as well as the way in which the speaker or writer intends for their words to be understood by their audience.