| Subject | English | Russian |
| tech. | combination of unlikely events | комбинация маловероятных событий |
| math. | highly unlikely event | маловероятное событие |
| gen. | in the unlikely event | в том маловероятном случае (В том маловероятном случае, если/в том маловероятном случае, когда = in the unlikely event (that) (something) happens. If a very improbable outcome turns out to be the case. I wouldn't worry too much, but in the unlikely event that you lose your job, you can always come live with us for a while. In the unlikely event I win the lottery, the first thing I would do is travel to Jamaica. Farlex Dictionary of Idioms. © 2015 Alexander Demidov) |
| gen. | in the unlikely event | в маловероятном случае (o_lia) |
| gen. | in the unlikely event | если ..., что маловероятно (если (что-то случится), что маловероятно) |
| O&G, casp. | unlikely event | в редких случаях (Yeldar Azanbayev) |
| O&G, casp. | unlikely event | маловероятный случай (Yeldar Azanbayev) |
| energ.ind. | unlikely event | маловероятное событие |