The word "more discrediting" means to discredit something to an even greater extent. The antonyms of this word are positive words that imply credibility or authenticity. These words include "credible," "valid," "trustworthy," "accurate," "truthful," "dependable," "reliable," "honest," "authentic," "faithful," "genuine," "legitimate," "factual," and "verifiable." Using these words in place of "more discrediting" can help convey a sense of trust and confidence in the information being presented. By choosing words that imply credibility and trustworthiness, you can help your audience feel more secure in the information you are sharing.