a sign that something bad is likely to happen in the future (Cambridge)
a sign or warning of something that is going to happen in the future, especially when it is something unpleasant (Oxford)
بیوقوف ,احمق
For the economy, the portents are extremely gloomy.(Cambridge).
The event proved to be a portent of the disaster that was to come.(Oxford)
the portents are extremely gloomy
a portent of the disaster
Omen
Harbinger
Premonition
Expectation
Doom
Portentousness
Portentous