The word "constate" means to affirm or assert the truth of something. Its antonyms, on the other hand, are words that convey the opposite meaning. Some of the antonyms for constate include: deny, dispute, contradict, challenge, oppose, question, and rebut. These words imply a sense of doubt or disagreement with the acknowledged fact or truth, suggesting a need for proof or further verification. When the truth of something is challenged or contradicted, it becomes necessary to establish its reality or authenticity. Antonyms for constate are essential tools that enable us to approach information with a critical eye and determine its veracity.