off-line

Not connected; -- of computers or computer peripherals normally connected or intended to be connected to other computers by a communications line; as, we can't print the document because the printer is off-line.(Computers)

Outside of or after a meeting or formal discussion; as, we can discuss the details off-line; -- a term used at meetings and conferences to suggest postponing detailed discussion of a topic so as not to occupy the time of a large group most of whom may not be interested.(fig.)