The phrase "does as says" means following through with what one promises or commits to doing. Antonyms for this phrase would include "inconsistent," "unreliable," "untrustworthy," and "dishonest." Someone who does not live up to what they say can also be described as "flaky," "undependable," or "incapable." Additionally, if someone is unable to keep their promises, they can be described as "failures" or "incompetent." All of these words are antonyms for "does as says" and indicate a lack of reliability, credibility, and trustworthiness, which can be a significant barrier to building relationships both personally and professionally.