What does immobilised mean?
Immobilised means unable to move, or prevented from moving. The word is especially useful when something has been deliberately or unavoidably fixed in place: a patient may be immobilised to protect an injury, a vehicle may be immobilised after a breakdown, and a person may be immobilised by law or by physical restraint. It is the past tense and past participle of the British verb immobilise, while its past-participle form also functions as an adjective. The word has a neutral, professional tone and appears in medical, transport, legal, and security contexts. Its American spelling is immobilized. Immobilised derives from the Latin immobilis, meaning “not movable,” and belongs to the same word family as immobile, mobility, and mobilise.
Unable to move or prevented from moving.
"The rescue team found the climber immobilised beneath the fallen rock."
Common in British spelling; American English generally uses immobilized.
Past tense and past participle of immobilise: to prevent from moving or make immobile.
"The authorities immobilised the vehicle outside the embassy."
Used in British spelling; the corresponding American forms are immobilized and immobilizing.
From the Latin immobilis, meaning “not movable,” immobilised captures the moment when movement is taken away — whether by injury, machinery, or law.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of immobilised
Immobilised is formed from the Latin-derived adjective immobile, meaning “not movable,” together with the verb-forming suffix -ise. The underlying Latin word immobilis was formed from the negative prefix in- and mobilis, “movable.” The family later developed into English forms such as immobile, mobility, mobilise, and immobilise, with immobilised appearing as the British past tense and past participle of the verb.
Related word forms
How immobilised is actually used
In British spelling, immobilised is commonly used in medical, transport, legal, and security contexts. American English usually spells it immobilized; the meanings and grammatical uses are otherwise broadly the same.
Easily confused with immobilised
Immobile is an adjective describing something that is inherently or currently unable to move, whereas immobilised often suggests that movement has been prevented or that an action has made something immobile.