Synonyms for iowa Found 4 synonyms across 2 meanings for “iowa”. a member of the Siouan people formerly living in Iowa and Minnesota and Missouri (noun) ioway a state in midwestern United States (noun) iaia. Explore Related Words Rhymes with iowaSynonyms for iowaySynonyms for iaSynonyms for ia. Synonym Finder | Rhyme Finder | Poetry Editor