不潔(ふけつ)

ふけつ
na-adjective, noun
unclean, dirty, unsanitary
1. unclean, dirty, unsanitary, filthy
The state of being dirty or unhygienic, either physically or morally.
不潔(ふけつ)な環境(かんきょう)は病気(びょうき)の原因(げんいん)になる。
An unsanitary environment can cause illness.
手(て)が不潔(ふけつ)だと、食中毒(しょくちゅうどく)になりやすい。
If your hands are unclean, you're more likely to get food poisoning.
彼(かれ)の部屋(へや)はいつも不潔(ふけつ)だ。
His room is always dirty.

不潔(ふけつ) is the opposite of 清潔(せいけつ) (clean).

Usage:

  • 不潔(ふけつ)な + noun (dirty/unclean [noun])
  • [noun]は不潔(ふけつ)だ ([noun] is dirty)

Contrast:

  • 不潔(ふけつ) (unclean) vs 清潔(せいけつ) (clean/hygienic)
  • 汚(きたな)い (dirty - more colloquial) vs 不潔(ふけつ) (unhygienic - more formal/clinical)

不潔(ふけつ) emphasizes the lack of hygiene, while 汚(きたな)い is more general for 'dirty'.

Related Words

Antonym: 清潔(せいけつ) (clean)
general
Added 2026.1.13 20:59 · Revised 2026.2.2 19:30
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