Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
narrow-mindedness is a noun meaning "an inclination to criticize opposing opinions or shocking behavior". It carries one recorded sense.
an inclination to criticize opposing opinions or shocking behavior
Definitions, synonyms and semantic relations for narrow-mindedness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.