premonitory
From Longman Dictionary of Contemporary Englishpremonitorypre‧mon‧i‧to‧ry /prɪˈmɒnətəri $ -ˈmɑːnətɔːri/ adjective formal WARNgiving a warning that something unpleasant is going to happen premonitory symptoms of the diseaseExamples from the Corpuspremonitory• Brushing her teeth, she thought about Francesca, and a cold premonitory feeling came over her.• a disease with few premonitory symptoms• Epidemiological evidence suggests that complications associated with NSAIDs are characterised by a paucity of premonitory symptoms.