Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
inappropriateness is a noun meaning "inappropriate conduct". It carries 2 recorded senses.
inappropriate conduct
the quality of being not particularly suitable or befitting
“he retracted nothing that he had said about the inappropriateness of either a corporeal God or a God who is a person”
“his praise released from her loud protestations of her unworthiness”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for inappropriateness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.