desperately
desperate + -ly
https://gyazo.com/98360d8788ab2d2fe9f8ba0f2d404129
source: [アリスが腕相撲で必死になっているGIF画像｜無料GIF画像検索 GIFMAGAZINE 486300]
adverb
in a way that shows despair:
必死になって; やけになって
e.g. he looked around desperately.
used to emphasize the extreme degree of something:
どうしても, 本気で; ひどく, 極度に
e.g. he desperately needed a drink
e.g. as submodifier : I am desperately disappointed.