More validating means something that is supporting, approving, or confirming. Its antonyms, therefore, will be words that mean the opposite. Some of the antonyms for more invalidating can be words like validating, supporting, endorsing, confirming, certifying, or affirming. These words signify a positive or approving sentiment towards a person or an idea. Conversely, some other antonyms for more invalidating can include words like refuting, undermining, discrediting, or challenging. These words imply a negative or critical connotation and can be used to express doubt or skepticism towards someone or something. By using such antonyms, we can understand the importance of language in conveying our thoughts and feelings.