Very
Extremely, Exceedingly
adverb
When something is moving towards emergency (非常), it is something that is very, extremely bad. Like, exceedingly so. It's nuts.
The reading comes straight from the word 非常, which you hopefully know okay by now!
イチゴは今季節外れなので、非常に高いんです。
Strawberries are out of season now, so they are very expensive.
舌は非常に重要な発声器官です。
The tongue is an exceedingly important speech organ.
コウイチ大統領の支持率は非常に高い。
President Koichi’s approval ratings are extremely high.