碌: decent

decent; proper (with negatives)

13 strokesNames & literary · Rare kanji (1級 range)in 2 words here

Readings

ロク

Kun

ろくな

ろく is used only with negatives: 碌に〜ない, 碌な〜ない ('hardly; nothing decent'). 耄碌 (もうろく) means senility.

碌なろくなdecent; satisfactory

碌にろくに(not) properly; (not) enough

碌でなしろくでなしgood-for-nothing

耄碌もうろくsenility; dotage

昨日きのうは忙いそがしくて、碌ろくに寝ねていない。

I was busy yesterday and have hardly slept.

あの男おとこは碌ろくでなしで、仕事しごともせず借金しゃっきんばかりしている。

That man is a good-for-nothing who doesn't work and only racks up debts.

祖父そふも八十はちじゅうを過すぎて、少すこし耄碌もうろくしてきたようだ。

My grandfather is over eighty and seems to be getting a little senile.