確実性と可能性 - Likelihood

(of something bad) to be about to happen to one

used to refer to the possibility of something happening or being true

‌a thing that is extremely likely to be true or happen

安全な賭け, 確実な投資

to have a high chance of happening or being true

according to what is real or can be done

to be very close or likely to achieve something, particularly something very good or desirable

used to say that one doubts that something can ever happen or be true

あり得ない可能性, ほとんど無理な可能性