The antonyms for the word "re-commencements" are cessation, discontinuation, ending, finish, and halt. These words refer to the act of stopping an activity, task or process. Cessation is a complete halt, while discontinuation refers to the interruption of an ongoing activity. Ending and finish entail the termination of a process or activity, and halt means a sudden stop due to an external factor. These terms are often used in the context of work, studies or projects. The opposite of restarting would be to stop, complete or end a task, rather than continuing or resuming it.