Synonyms for taboo Found 7 synonyms across 2 meanings for “taboo”. a prejudice (especially in Polynesia and other South Pacific islands) that prohibits the use or mention of something because of its sacred nature (noun) tabu excluded from use or mention (adj) forbiddenout(p)prohibitedproscribedtabuverboten Explore Related Words Rhymes with tabooSynonyms for tabuSynonyms for forbiddenSynonyms for out(p)Synonyms for prohibitedSynonyms for proscribed Synonym Finder | Rhyme Finder | Poetry Editor