There are many synonyms for the phrase "premonition of misfortune" that are used to describe a sense of foreboding or a feeling of impending doom. Some of the most common include presentiment, foreboding, intuition, premonition, premonitory, prophetic, presage, augury, omen, harbinger, portent, warning, and admonition. These words are often used to describe a sense of unease or apprehension that comes from a feeling that something bad is about to happen. Whether in literature, poetry, or everyday use, these synonyms are used to convey a heightened sense of awareness and the feeling that one should be prepared for what may come.