Pronunciation (UK) IPA (key): /ə(ʊ)ˈbiːsɪti/ (US) IPA (key): /oʊˈbisɪti/ or [-ɾi] Audio (UK)(file) Hyphenation: obes‧i‧ty Noun Singular obesity Plural none (pathology) Obesity is the state of being obese.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads