非 常 識(ひじょうしき)

ひじょうしき

noun, na-adjective

lack of common sense; absurd; outrageous

1. lack of common sense; senselessness; absurdity

Behavior, words, or actions that go against what is generally considered common sense or socially acceptable. Used as both a noun (a lack of common sense) and a na-adjective (senseless, outrageous). Carries a strongly critical or disapproving tone.

そんなことを言(い)うのは非常識(ひじょうしき)だ。

Saying something like that shows a lack of common sense.

深夜(しんや)に大(おお)きな音(おと)を出(だ)すのは非常識(ひじょうしき)な行為(こうい)だ。

Making loud noises late at night is inconsiderate behavior.

電車(でんしゃ)の中(なか)で大声(おおごえ)で電話(でんわ)をするなんて、非常識(ひじょうしき)にも程(ほど)がある。

Talking loudly on the phone on the train is beyond inconsiderate.

Usage

非常識(ひじょうしき) is the opposite of 常識(じょうしき) (common sense). It can function as a noun or a na-adjective. The expression 非常識(ひじょうしき)にも程(ほど)がある means "there are limits to how senseless one can be" and expresses strong disapproval.

Common collocations

非常識(ひじょうしき)な人(ひと) (a person lacking common sense)
非常識(ひじょうしき)な行動(こうどう) (senseless behavior)
非常識(ひじょうしき)にも程(ほど)がある (there are limits to rudeness)
非常識(ひじょうしき)だと思(おも)う (to consider it inconsiderate)

Similar words

非常識(ひじょうしき): lacking common sense (socially unacceptable)
常識外(じょうしきはず)れ: deviation from common sense (slightly milder)
無礼(ぶれい): rudeness, discourtesy (focus on manners)
失礼(しつれい): impolite (can be lighter in tone)

Related Words

Antonym: 常識(じょうしき) (common sense)

Compare: 常識外(じょうしきはず)れ (deviation from common sense)

Compare: 無礼(ぶれい) (rudeness, discourtesy)

Compare: 失礼(しつれい) (impolite)

Antonym: 常識的(じょうしきてき) (sensible)

general

Added 2026.3.2 17:30 · Revised 2026.9.2 13:01

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