'Irrational' in the Bible

Will your irrational babble silence people, and when you mock them, will you escape without being shamed?

These people, like irrational animals, are mere creatures of instinct that are born to be caught and killed. They insult what they don't understand, and like animals they, too, will be destroyed,

Whatever these people do not understand, they slander. Like irrational animals, they are destroyed by the very things they know by instinct.