Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
innumerous is an adjective meaning "too numerous to be counted". It carries one recorded sense.
too numerous to be counted
“countless hours”
“an infinite number of reasons”
“innumerable difficulties”
“the multitudinous seas”
“myriad stars”
Definitions, synonyms and semantic relations for innumerous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.