The adjective terminated refers to something that's been brought to an end, often abruptly. If you sister hangs up on you in the middle of a conversation, you can describe your phone call as terminated.

Anything canceled or concluded is terminated. At work, a terminated employee is one who's been fired, and legally a terminated contract has reached the end of its official term or been declared void. Terminated has its roots in the Latin word terminus, "end or limit."

Definitions of terminated

adj having come or been brought to a conclusion

“the abruptly terminated interview”
all over, complete, concluded, ended, over
ended or brought to an end

adj (of e.g. a contract or term of office) having come to an end

having come to an end or become void after passage of a period of time

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