When communicating with others, it is common to express dissatisfaction or disagreement with a person or situation. It can be easy to default to using the phrase "complain against" in such circumstances, but using alternative synonyms can help to expand one's vocabulary and convey a more nuanced message. Some synonyms for "complain against" include "raise objections," "express dissent," "disapprove," and "protest." Each of these words carries a slightly different connotation, allowing for a more precise description of one's stance. By exploring a wider range of synonyms for "complain against," individuals can improve their communication skills and convey their thoughts and feelings more effectively.