Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unrepeatable is an adjective meaning "not able or fit to be repeated or quoted". It carries 2 recorded senses.
not able or fit to be repeated or quoted
“what he said was funny but unquotable”
Definitions, synonyms and semantic relations for unrepeatable come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.