Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
uproarious is an adjective meaning "uncontrollably noisy". It carries 2 recorded senses.
uncontrollably noisy
Definitions, synonyms and semantic relations for uproarious come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.