vitally

adverb

very importantly

Wiktionary

Pronunciation: /ˈvaɪ.tə.li/

adv

Etymology: Etymology tree English vital Proto-Indo-European *leyg-der. Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Proto-West Germanic *-līkē Old English -līċe Middle English -ly English -ly English vitally From vital + -ly.

In a manner that imparts vitality
To an extent that is vital; indispensably