Synonyms for myriad Found 12 synonyms across 2 meanings for “myriad”. the cardinal number that is the product of ten and one thousand (noun) 10000 too numerous to be counted (adj) countlessinfiniteinnumerableinnumerousmultitudinousnumberlessuncountedunnumberableunnumberedunnumerable Explore Related Words Rhymes with myriadSynonyms for 10000Synonyms for countlessSynonyms for infiniteSynonyms for innumerableSynonyms for innumerous Synonym Finder | Rhyme Finder | Poetry Editor