**Here are some examples of using the word «malignant» in English:**
1. The doctor warned us that the tumour was malignant and required immediate treatment.
2. She began to notice a malignant growth on her arm, which quickly spread to other parts of her body.
3. The company's financial situation was getting worse, and some analysts began to speak of a malignant cycle of decline.
4. The politician's reputation was tarnished by a series of scandals, and his malignant actions only served to deepen the distrust of the public.
5. The weather forecast warned of a malignant storm approaching, with strong winds and heavy rain.
6. The teacher noticed a malignant influence among some of the students, who were spreading negative attitudes and disrupting the class.
7. The artist's work was criticized for its malignant portrayal of society, which some saw as offensive and disturbing.
8. The company's decision to cut costs without regard for safety standards was seen as a malignant move that put workers at risk.
9. The patient's condition worsened rapidly, and the doctors feared a malignant course of the disease.
10. The rumors circulating about the company's future were malignant, with some predicting bankruptcy and others predicting a takeover.