Similar words: threaten, threatened, threat, heartening, glistening, shortening, frightening, thread. Meaning: ['θretnɪŋ] 
adj. 1. threatening or foreshadowing evil or tragic developments 2. darkened by clouds.
adj. 1. threatening or foreshadowing evil or tragic developments 2. darkened by clouds. 
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1. My boyfriend was threatening to finish with me.
2. The dog gave a threatening growl.
3. The threatening strike did not take place after all.
4. The police could have charged them with threatening behaviour.
5. The two countries were threatening to nuke each other.
6. The acid rain is threatening world environment.
7. The situation assumed a threatening character.
8. Illegal hunting is threatening the survival of the species.
9. The government is threatening to take drastic action.
10. Postal workers are threatening a strike if they don't receive a pay increase.
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11. Predatory pricing by large supermarkets was threatening the livelihood of smaller businesses.
12. He has accused her of threatening to gouge his eyes out.
13. In a surprisingly bold move , he is threatening court action against the company.
14. They were threatening to bring down the government by withdrawing from the ruling coalition.
15. The union is threatening industrial action against the company.
16. The miners are threatening to withdraw their labour.
17. The river was threatening to burst its banks.
18. She's threatening to sue her employers for wrongful dismissal.
19. He was threatening to burn the place down.
20. The Civil Service is/are threatening to strike.
21. She is threatening to file a petition for divorce.
22. Pollution along the coastline is threatening marine life.
23. Workers are threatening to walk out.
24. Their longest-serving employee is threatening to quit over pay.
25. The war is threatening to engulf the entire region.
26. Rebellious back-benchers are threatening to vote against the government.
27. They advanced upon me in a threatening manner.
28. After several threatening calls[sentencedict.com], we decided to go ex-directory.
29. A plague of squirrels is threatening our forests.
30. His temples pulsed a little, threatening a headache.
More similar words: threaten, threatened, threat, heartening, glistening, shortening, frightening, thread, threadlike, evening, opening, happening, screening, gardening, beaten, good evening, intervening, create, laureate, creating, reasoning, breathing, breathtaking, three, threshold, with regard to, lenin, with respect to, peninsula, heathenism.