The antonyms for the word "disseminations" are concealment, suppression, and secrecy. Concealment is the act of keeping something hidden or secret, while suppression is the act of preventing the dissemination or spread of information. Secrecy is the act of keeping something confidential, often for the purpose of preventing others from knowing about it. While dissemination implies the widespread distribution of information, these antonyms suggest a deliberate effort to keep something hidden from view. It's important to consider these antonyms when communicating information, as they can help you understand how your words might be received by your audience.