“Must not” in Japanese
Short answer
Must not in Japanese is “勿れ” (nakare). Full meaning: must not, do not.
Other ways to say “Must not” in Japanese
いけん
iken bad, wrong, naughty; must not (do, be), should not, ought not to; useless, no good, bad
可からず
bekarazu must not (do), should not, do not; cannot
罷り成らぬ
makarinaranu not be allowed, must not
可からざる
bekarazaru cannot, must not
べきでは無い
bekidehanai should not, must not
行けない
ikenai bad, wrong, naughty; must not (do, be), should not, ought not to; useless, no good, bad
ならない
naranai cannot help (feeling), unbearably, awfully, irresistibly; must not ..., should not ...; must ..., have to ..., ought to ...
訳にはいけない
wakenihaikenai cannot (due to external circumstances), cannot afford to, must not, impossible to, no way one can (do)
訳にはいかない
wakenihaikanai cannot (due to external circumstances), cannot afford to, must not, impossible to, no way one can (do)
明かん
akan useless, no good, hopeless; cannot, must not, not allowed
駄目
dame no good, not serving its purpose, useless, broken; hopeless, wasted, in vain, purposeless; cannot, must not, not allowed
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