Means 'is nothing more than ~' or 'merely ~', downplaying something as small, limited, or insignificant. The speaker asserts that the thing does not exceed a certain modest level. It often carries a dismissive or humble tone, minimizing the importance of what precedes it.
[Plain form] / [Noun] + にすぎない
それは単なる噂にすぎない。
Sore wa tannaru uwasa ni suginai.
That's nothing more than a mere rumor.
Noun 噂 + にすぎない dismisses it as merely a rumor
私は事実を言ったにすぎない。
Watashi wa jijitsu wo itta ni suginai.
I merely stated the facts.
Plain past 言った + にすぎない minimizes the speaker's act
彼はただの子供にすぎない。
Kare wa tada no kodomo ni suginai.
He's nothing more than a child.
Often paired with ただ/単なる to strengthen the 'merely' nuance
• Frequently combined with ただの / 単なる ('mere') for emphasis. • Tone is dismissive or humble — it minimizes value or importance. • Register: neutral to formal; common in writing and analytical speech.
The JLPT rarely asks whether you recognise a pattern — it asks which of several similar patterns fits. These are the ones ~にすぎない is tested against.
だけだ simply states 'only', a plain limit; にすぎない adds an evaluative, dismissive nuance that the amount is trivially small.
でしかない is very close ('is nothing but') but tends to sound more emotional/resigned; にすぎない is more objective and analytical.
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