Black masses is a phrase that can be replaced with a variety of synonyms that better articulate the same meaning. The phrase often conveys a sense of ominous or foreboding atmosphere, and conjures images of dark forces gathering for sinister purposes. Some possible synonyms for black masses include dark rites, eerie rituals, shadowy congregations, and macabre gatherings. Each of these alternatives taps into the same underlying tone of menace and unease, but offers a slightly different shading or nuance that can help convey specific expectations or implications. Whether you're writing horror fiction, reporting on a dark ritual, or simply looking for a more evocative way to describe a gathering of sinister individuals, synonyms for black masses can help you find the perfect words to capture the right mood.