騒がないで

don't make noise, don't be noisy

→ 騒ぐ
騒が make a big fuss + ない Negation + で Te-form (conjunctive)
verb · informal Rare #35,171
don't make noise, don't be noisy A negative request or command; the form can sound blunt without a polite ending.
JA: 図書館では騒がないで。
EN: Don't make noise in the library.
Conjugation of 騒ぐ
Imperative
騒がないで

皆さん騒がないで

Everyone, please don't make so much noise.

— マルコムX (1992)

ここでは騒がないでよ。

Don't make so much noise here.

騒がないで

Don't make a fuss.

— RRR (2022)

君たち、騒がないで。

You guys, keep it down.

ここで騒がないで下さい。

Please don't make noise here.