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without authority
without reason; unnecessarily
recklessly; indiscriminately; arbitrarily
濫りに規則を破ると罰を受けます。
You will be punished for breaking the rules without authority.
濫りに他人の権利を侵害してはいけない。
You must not infringe on others' rights without authority.
濫りに行動した結果、混乱が生じた。
Chaos ensued as a result of unauthorized actions.