noun
high probability; high likelihood
Used to describe a situation or event that is very likely to happen. Often appears in compound phrases like 高確率で.
この作戦なら高確率で成功するだろう。
With this strategy, we'll probably succeed with high probability.
明日は高確率で雨が降るらしい。
It seems there's a high chance of rain tomorrow.
低確率 is the antonym, meaning 'low probability'.
Compound of 高 (high) and 確率 (probability).