(of a disease or physical condition) continuing for a long time

incessant, never-ending

to cause (a person, vehicle etc) to be slow or late; (an instance of) delaying or being delayed

deferment, interruption

slow in doing things

procrastinating

having much extent in space (length); to want, wish for, a person, thing very much

extended in space or time

taking a long time

long

remaining

leftover

surviving (in reduced size etc) from an earlier form

leftover