Main Entry: im·mo·bile

Pronunciation: \(ˌ)i(m)-ˈmō-bəl, -ˌbī(-ə)l also -ˌbēl\

Function: adjective

Etymology: Middle English in-mobill, from Latin immobilis, from in- + mobilis mobile

Date: 14th century

1 : incapable of being moved : fixed
2 : not moving : motionless <keep the patient immobile>

— im·mo·bil·i·ty \ˌi-(ˌ)mō-ˈbi-lə-tē\ noun