Pronunciation IPA (key): /ˌæŋ(ɡ)ˈzaɪ.ə.ti/ Audio (US)(file) Noun Singular anxiety Plural anxieties Anxiety is a fear of what might happen in the future. The thought of going to the dentist filled him with anxiety. Related words anxiousWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads