The term "co signs" refers to an action of endorsing or supporting someone or something. The various antonyms for this word include "oppose," "disapprove," "condemn," "criticize," "denounce," "object," "reject," "oppose," "refute," "debunk," "question," and "doubt." While "co-signs" is associated with positive reinforcement, these antonyms convey negative opinions and viewpoints, indicating a lack of support or faith in a particular individual or idea. These words are necessary for expressing objective and balanced opinions and also help individuals make informed decisions about what or who to trust and support.