ominous(of or pertaining to an omen or to omens; being or exhibiting an omen) adjective [UK: ˈɒ.mɪ.nəs] [US: ˈɑː.mə.nəs]They all interpreted the presence of that owl as an ominous premonition. = Todos interpretaron la presencia de aquel búho como una premonición ominosa.