Wiktionary
a. Not motile (lacking the ability to move)
WordNet
adj. (of spores or microorganisms) not capable of movement [syn: nonmotile]
Usage examples of "immotile".
At this moment over a thousand immotile unit brains were now devoted to interpreting the alien electronics and the binary number sequences they used.
Machines were also being used to supplement body function, cybernetic additions that allowed immotile movement, and even separation from the group home.
Their motiles were smarter and stronger, capable of making complex decisions, while the immotiles were sequencing refinement after refinement into their neural structure, advancing their thought-processing capacity far beyond their natural state.
This was the primary research area, where the immotile units had built facilities to explore every scientific discipline.
When the immotile finally managed to switch the transceiver on, a list of possible transmission sequences flipped to semiactive status.