Japanese grammar

What does ~に足りない mean? Japanese grammar N1

~に足りない means not worth doing…; negligible.

Quick facts
Level (estimated, JLPT framework)N1
StructureV辞書形 + に足りない
N + に足りない
Romajinitarinai
Meaningnot worth doing…; negligible

Forming it

Verb (say)言う + に足りない
Verb (bother)取る + に足りない

How to use it

States that something is NOT WORTH doing A. Only used with a few verbs: 言う・取る・恐れる.

  • 「~に足りない」 = not worth doing A. Common phrases: 「取るに足りない」 (not worth bothering with), 「言うに足りない」.
  • Different from the literal 「足りない」 (insufficient in quantity) — this pattern is about VALUE.
  • The affirmative form 「~に足る」 = worth doing (信頼に足る人物).

Examples

  • A rumor like that isn’t worth taking seriously.

  • He is a person worthy of trust.

Keep in mind

  • Only with a few verbs: 取る・言う・恐れる.
  • Different from 「足りない」, which means lacking in quantity.

Common mistakes

  • Wrong時間(じかん)が取(と)るに足(た)りないから、急(いそ)ごう。

    We don't have enough time, so let's hurry.

    Correct時間(じかん)が足(た)りないから、急(いそ)ごう。

    Insufficient in QUANTITY uses plain 「足りない」; 「に足りない」 is about value (not worth it).

  • Wrongこの問題(もんだい)は解(と)くに足(た)りない。

    This problem isn't worth discussing.

    Correctこの問題(もんだい)は取(と)るに足(た)りない。

    Only used with a few FIXED verbs (取る・言う・恐れる).

Exam tips

  • 「に足りない」 = not worth it (取るに足りない); different from 「足りない」 (insufficient quantity).

Related patterns

All N1 grammar →