The phrase "remain immobile" is correct and usable in written English.
You can use it when you want to emphasize that something should not move or change. For example: "The statue remained immobile despite the strong winds."
He can now move his arms and, with some effort, his hands, but his fingers remain immobile.
CAROLINA The rookie safety Deon Grant of the Carolina Panthers will have to remain immobile for at least two months because of his fractured hip.
Taking Precautions Against Clots Deep vein thrombosis and pulmonary embolism are potential hazards to anyone compelled to sit in a cramped position or remain immobile for long periods.
First, several persons in social contact with one another simultaneously exhibit intense fear and either flee (or demonstrate disorganization leading toward flight) or remain immobile.
Correction: November 5, 2000, Sunday An article last Sunday about a circulatory problem that can afflict airline passengers and others who remain immobile for extended periods misidentified a blood-thinning drug that is used to treat it.
(Drosophila melanogaster, when they're tired, creep away from their food, crouch down on their abdomens, and remain immobile for up to two and a half hours at a time).
Behavior was recorded by a video camera positioned above the cylinders and the duration that each animal remained immobile as well as the latency to the first immobilization was measured over a 6-minute test period.
Israel remained immobile.
Norman wanted to make sure the gunman remained immobile.
His specialty is static apnea: holding your breath while remaining immobile in a swimming pool.
Each day during the trial, Mair remained immobile and impassive, staring straight ahead and rarely looking around.
