Antonyms for "gives no credence" include "believes," "trusts," "endorses," "accepts," "backings," "approves," and "supports." When someone gives no credence to an argument or a statement, they are not willing to believe it or take it seriously. In contrast, the antonyms of "gives no credence" indicate that a person is willing to believe or support a particular idea or argument. For example, if someone endorses a product, they give it credibility and believe in its value. Similarly, if they trust a person's words, they accept it as truthful and worth considering.