Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
orgiastic is an adjective meaning "used of frenzied sexual activity". It carries 2 recorded senses.
used of frenzied sexual activity
used of riotously drunken merrymaking
“a night of bacchanalian revelry”
“carousing bands of drunken soldiers”
“orgiastic festivity”
Definitions, synonyms and semantic relations for orgiastic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.