to move so that you are not touching or holding someone
Sally found it difficult to disengage herself from his embrace.
2 [intransitive and transitive]TEMTTC
if you disengage something, especially a part of a machine, or if it disengages, you make it move away from another part that it was connected to [≠ engage]:
Disengage the gears when you park the car.
He tapped in the code and the lock disengaged.
to stop being involved or interested in something
Too many young people disengage from learning.
4 [intransitive and transitive]PMA
if two armies disengage, they stop fighting [≠ engage]
—disengagement noun [uncountable]