Japanese grammar

What does ろくに~ない mean? Japanese grammar N2

ろくに~ない means not… properly/enough.

Quick facts
Level (estimated, JLPT framework)N2
Structureろくに + Vない
Romajirokuni nai
Meaningnot… properly/enough

Forming it

Connectionろくに + Vない

How to use it

States that something is done HALF-HEARTEDLY / not properly. Always used with negation and carries a critical/complaining tone.

  • 「ろくに~ない」 = not... properly: 「ろくに勉強しない」, 「ろくに寝ていない」.
  • The predicate MUST be negative — 「ろくに」 itself is not used with an affirmative.
  • Carries a tone of criticism or complaint about the situation.

Examples

  • I was so busy that I could hardly eat lunch.

  • I started without properly listening to the explanation.

Keep in mind

  • Must be used with negation.
  • Carries a critical/complaining tone.

Common mistakes

  • Wrong説明(せつめい)をろくに聞(き)きました。

    Correct説明(せつめい)をろくに聞(き)きませんでした。

    ろくに normally pairs with a negative predicate.

Exam tips

  • 「ろくに~ない」 = not properly; MUST be negative.

Related patterns

All N2 grammar →