The term "objectionable person" refers to someone who is unpleasant, offensive, or disliked by others. There are several other synonyms that can be used to describe such individuals, including "disagreeable," "unpleasant," "offensive," "repugnant," "revolting," "disgusting," "abhorrent," "odious," "repulsive," "contemptible," "hateful," and "deplorable." Each of these terms connotes a sense of strong aversion or dislike towards a particular person, emphasizing their negative qualities and traits. Whether it's a coworker, neighbor, or acquaintance, referring to someone with one of these synonyms can help convey a clear sense of disapproval towards their behavior or personality.