What is the opposite of the word 'TERMINATE'?

The opposite of 'TERMINATE' is 'BEGIN.' When something is terminated, it means that it has come to an end or has been stopped. In contrast, to begin something means to start it or to initiate a process. Thus, while 'stop,' 'end,' and 'finish' all imply bringing something to a conclusion, 'begin' signifies the initiation of an activity or process, making it the clear antonym of 'terminate.' This relationship in meaning is what makes 'begin' the correct choice in identifying an opposite to 'terminate.'