say it: uhn-WEEL-dee-nuhs
unwieldiness is a noun meaning "the quality of being difficult to direct or control by reason of complexity". It carries 2 recorded senses.
the quality of being difficult to direct or control by reason of complexity
“avoiding the unwieldiness of formal legal processes”
“the onset of unwieldiness and bureaucracy in large organizations”
trouble in carrying or managing caused by bulk or shape
“the movers cursed the unwieldiness of the big piano”
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 unwieldiness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.