(ろく)

ろくに
adverb
(not) properly; (not) satisfactorily
1. (not) properly; (not) satisfactorily
Used with negative expressions to mean not doing something properly or adequately.
(ろく)()べていない。
I haven't eaten properly.
(ろく)(ねむ)れなかった。
I couldn't sleep properly.
(ろく)説明(せつめい)もしないで(かえ)った。
He left without even explaining properly.

GRAMMAR NOTE:

(ろく)に is almost always used with NEGATIVE forms:

  • (ろく)に〜ない (doesn't do properly)
  • (ろく)に〜できない (can't do properly)

COMMON COLLOCATIONS:

  • (ろく)()べていない: haven't eaten properly
  • (ろく)()ていない: haven't slept properly
  • (ろく)(はな)せない: can't speak properly
  • (ろく)()らない: don't really know

WRITING:
Often written in hiragana as ろくに.

SIMILAR EXPRESSIONS:

  • ちゃんと〜ない: don't do properly
  • まともに〜ない: don't do decently