Coming or likely to happen very soon. (Cambridge Dictionary)
Likely to occur at any moment; impending: (Dictionary.com)
Projecting or leaning forward; overhanging. (Dictionary.com)
About to happen. (Oxford Dictionaries)
Ready to take place : happening soon. (Merriam – Webster)
If you say that something is imminent, especially something unpleasant, you mean it is almost certain to happen very soon. (Collins Dictionary)
An imminent fail is in the horizon.
No trade deal with China is ‘imminent’.