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Kotomora
JLPT N1Written, formalCondemning

まじき・あるまじきunbecoming of; should never

まじき, an old "should not", is today nearly always one fixed phrase: あるまじき, before a noun. It condemns something as unworthy of the person who did it: 教きょう師しにあるまじき行こう為い, "conduct unbecoming a teacher". It belongs to news and official criticism. In plain words, 教きょう師しとして許ゆるされない行こう為い.

How to form it

Role + に/として + あるまじき + noun

The noun names what was done or said: 行こう為い, 発はつ言げん, 態たい度ど. It never changes shape. To end a sentence it leans on こと: あるまじきことだ.

Before it
The role that sets the standard: 教きょう師し, 医い師し, 公こう務む員いん, 政せい治じ家か, or simply 人ひと. It is left out when everyone knows it.
Tone
Public condemnation of serious misconduct. For a small slip it is absurdly heavy.
Where you'll meet it
News, editorials, disciplinary notices, official apologies. Heard on the news and at press conferences, seldom in conversation.

In use

まじき after other verbs

まじき could once follow any verb. The one other you may meet today is 許ゆるすまじき, "unforgivable".

Close neighbours

べからざるN1

Another old "must not" before a noun, with no role in view.

ともあろうN1

Names the person, in dismay: someone of that standing did this.

まいN2

Today's form of the same old word. あるまい is a guess, "there probably isn't", not a condemnation.

Check yourself

1What does this say?

それは政せい治じ家かにあるまじき発はつ言げんだ。

Choose an answer to see why.

2Which one is right?

弱よわい者ものをいじめるなど、人ひととして(  )。

Choose an answer to see why.

More detail

At the end of a sentence the old shape is まじ. 許ゆるすまじ lives on as a slogan: "never to be forgiven".

More sentences