Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
untheatrical is an adjective meaning "not suited to or characteristic of the stage or theater". It carries one recorded sense.
not suited to or characteristic of the stage or theater
“a well-written but untheatrical play”
“an untheatrical personality”
Definitions, synonyms and semantic relations for untheatrical come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .