The word "approve" means to give consent, authorize, or agree to something. Its antonyms include disapprove, oppose, reject, or disagree. When something is disapproved, it means that it has been rejected or not accepted because it does not fall in line with the set standards. When someone opposes an idea or proposal, they express a different viewpoint and suggest that the idea is not acceptable. Rejecting an offer, on the other hand, means not accepting it because it does not meet the necessary requirements. Disagreeing with someone's opinion or decision means having a differing viewpoint and not seeing things in the same light. Therefore, the antonyms for "approve" show a lack of consent or agreement.