(なま)ぬるい

なまぬるい
i-adjective
lukewarm; halfhearted; lenient
1. lukewarm (temperature)
Neither hot nor cold; tepid.
コーヒーが(なま)ぬるい。
The coffee is lukewarm.
2. halfhearted; lenient; soft
Lacking intensity, strictness, or conviction; too easygoing.
(なま)ぬるい対応(たいおう)では問題(もんだい)解決(かいけつ)しない。
Halfhearted measures won't solve the problem.
そんな(なま)ぬるいことを()っている場合(ばあい)ではない。
This is no time for such half-measures.

WORD FORMATION:
(なま) (raw, half-) + ぬるい (lukewarm) → truly lukewarm

FORMS:

  • (なま)ぬるい(みず) - lukewarm water
  • (なま)ぬるい態度(たいど) - halfhearted attitude
  • (なま)ぬるさ (noun form) - lukewarmness, halfheartedness

FIGURATIVE USAGE:
The figurative sense (halfhearted, lenient) is very common. Used to criticize responses, policies, or attitudes that lack sufficient strength or conviction.

COMMON EXPRESSIONS:

  • (なま)ぬるい対応(たいおう) - halfhearted response
  • (なま)ぬるい処分(しょぶん) - lenient punishment
  • (なま)ぬるいことを()う - to say something weak/unconvincing