異常(いじょう)

いじょう
noun, na-adjective
abnormality, unusual
descriptive
See also: 以上(いじょう) (above, more than), 委譲(いじょう) (delegation), 移譲(いじょう) (transfer, cession)
1. abnormality, anomaly
A condition or state that deviates from what is normal or expected.
異常(いじょう)は見(み)つかりませんでした。
No abnormalities were found.
Medical context
機械(きかい)に異常(いじょう)がある。
There's something wrong with the machine.
異常(いじょう)なし。
No abnormalities.
Common medical/technical phrase
2. unusual, abnormal
Not normal, deviating from the ordinary.
異常(いじょう)な暑(あつ)さです。
It's abnormally hot.
Na-adjective usage
異常(いじょう)に高(たか)い値段(ねだん)だ。
It's an abnormally high price.
Adverbial usage
今年(ことし)の天気(てんき)は異常(いじょう)だ。
This year's weather is abnormal.

異常(いじょう) indicates deviation from what is normal or expected. It functions as both a noun (an abnormality) and a na-adjective (abnormal).

Forms

  • Noun: 異常(いじょう) (an abnormality)
  • Na-adjective: 異常(いじょう)な (abnormal)
  • Adverb: 異常(いじょう)に (abnormally, extremely)

Common patterns

Usage domains

Frequently used in medical (異常(いじょう)なし on test results), technical (機械(きかい)の異常(いじょう)), and weather contexts (異常(いじょう)気象(きしょう)).

Similar words

正常(せいじょう) (normal, normality).

Related Words

Antonym: 正常(せいじょう) (normal)
Related: 異(こと)なる (to differ, to vary, to be different)
Antonym: 正常(せいじょう)な (normal)
Compare: 普通(ふつう)でない (unusual)
Compare: 狂気(きょうき) (madness)
general
Added 2026.1.9 20:57 · Revised 2026.9.2 13:01
01500/01716_ijou