adjective.
Not motile (lacking the ability to move)
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
(of spores or microorganisms) not capable of movement
Word Usage
"In the gloom I could make out the doctor, still sitting in the small rocking chair, fully alert, chin cupped in his hand as he considered with bloodshot eye the immotile form before him."