Word parts uncertain + -ty Pronunciation (UK) IPA (key): /ʌnˈsɜːtənti/ (US) IPA (key): /ʌnˈsɝtənti/ Audio (US)(file) Noun Singular uncertainty Plural uncertainties Uncertainty is a state where there is a lack of certainty. Related words uncertainWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads