いい加減にして

iikagen ni shite◆idiom
Cut it out

いい加減にして！うるさいよ。

Cut it out! It's noisy.

◆ What It Really Means
A forceful demand to stop an annoying or inappropriate action, expressing exasperation or frustration.
Literal Meaning
Doing something to a moderate degree.
Literal Breakdown
いいgood/okay+加減moderation+にしてdoing something to
◇ Mental Image
Imagine a scale where something is being adjusted to the right degree. The speaker is metaphorically saying 'enough with the adjustment—stop it!'
◈ When to Use
A friend keeps interrupting your conversation with loud jokes. You turn to them and say 'いい加減にして！' to demand they stop.
◉ Cultural Note
This phrase reflects Japanese cultural emphasis on moderation and social harmony. Overstepping boundaries (e.g., being too loud) is often met with such direct reprimands in informal settings.
informal

A strong, often exasperated demand to stop an annoying or inappropriate behavior immediately.

いい加減にしてください。

Please stop it.

いい加減にしろ！

Knock it off!

Used when someone is being unreasonable, persistent, or causing trouble. Can sound harsh or frustrated.

Related Phrases

いいかげんにしろidiom
Same as いい加減にして but more forceful/casual

Pro Tip

Tone and Context

This phrase conveys strong frustration. Use it only when you are truly annoyed or want to firmly stop someone's behavior. It is not a polite request.

Gold Rule

When to Use

Reserve this phrase for situations where someone is being unreasonable, loud, or persistent. It is not suitable for gentle requests.

Word Origin

Composed of いい (good/okay) + 加減 (moderation/degree) + にして (doing something to). Literally means 'doing something to a moderate degree,' but idiomatically expresses frustration at someone's excessive or inappropriate behavior.

Usage Notes

This phrase is blunt and direct. It is typically used in informal contexts with people you are close to or in situations where strong language is acceptable. Avoid using it with superiors or in formal settings.

Word Breakdown

いい
good/okay/alright
root
+
加減
moderation/degree/condition
root
+
にして
doing something to (a certain degree)
particle
和英辞典
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