Word parts ominous + -ness Pronunciation IPA (key): /ˈɒmɪnəsnəs/ Hyphenation: o‧mi‧nous‧ness Noun Singular ominousness Plural none Ominousness is the state of being ominous; it is a state of foreboding. Related words ominous This section needs someone to add example sentences to it.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads