Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ponderousness is a noun meaning "an oppressive quality that is laborious and solemn and lacks grace or fluency". It carries 2 recorded senses.
an oppressive quality that is laborious and solemn and lacks grace or fluency
“a book so serious that it sometimes subsided into ponderousness”
“his lectures tend to heaviness and repetition”
the property of being large in mass
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 ponderousness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.