Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
abstrusity is a noun meaning "wisdom that is recondite and abstruse and profound". It carries one recorded sense.
wisdom that is recondite and abstruse and profound
“the anthropologist was impressed by the reconditeness of the native proverbs”
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 abstrusity come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.