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: 教師にあるまじき行為, "conduct unbecoming a teacher". It belongs to news and official criticism. In plain words, 教師として許されない行為.
Insulting a student is no way for a teacher to behave.
The remark was harshly criticized as one unbecoming a judge.
How to form it
Role + に/として + あるまじき + noun
The noun names what was done or said: 行為, 発言, 態度. 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: 教師, 医師, 公務員, 政治家, or simply 人. 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
Deceiving the public is conduct unbecoming a mayor.
This was conduct unbecoming a police officer, and we apologize deeply.
として works the same as に.
Ignoring due process is unthinkable in a country governed by law.
An institution as the standard.
That safety-review records were systematically deleted is an intolerable state of affairs.
No role named.
まじき after other verbs
まじき could once follow any verb. The one other you may meet today is 許すまじき, "unforgivable".
Deceiving the vulnerable is an absolutely unforgivable act.
Close neighbours
べからざるN1
Another old "must not" before a noun, with no role in view.
This is an outrage that cannot be tolerated in a democratic society.
ともあろうN1
Names the person, in dismay: someone of that standing did this.
For an editor-in-chief, of all people, to approve publication without checking the facts was careless.
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.
Surely he isn't serious.
Check yourself
1What does this say?
それは
Choose an answer to see why.
2Which one is right?
弱い者を
Choose an answer to see why.
More detail
At the end of a sentence the old shape is まじ. 許すまじ lives on as a slogan: "never to be forgiven".
More sentences
Deliberately fabricating the content of an article is conduct unworthy of a news organization.
Disregarding residents' safety is an attitude unworthy of a public administration.
His abandonment of responsibility during the emergency was condemned as unworthy of a commander.
Deliberately destroying cultural property is an intolerable outrage.
Concealing evidence is an utterly unforgivable act.