(of a thing) not able to be found because it is not in its expected place:a quantity of cash has gone missing
not present or included when expected or supposed to be:you can fill in the missing details later
(of a person) absent from a place, especially their home, and of unknown whereabouts:he has been reported as a missing person
(of a person) not yet traced or confirmed as alive, but not known to be dead, after an accident or during wartime:four soldiers had been wounded and one man was missingservicemen listed as missing in action