immotile

Lacking all movement

Immotile means incapable of movement or lacking the ability to move.

The term appears most often in biology, describing cells or organisms that cannot propel themselves: immotile sperm, immotile cilia syndrome.

Where motile organisms swim or crawl, immotile ones stay put or drift passively.

fixed

anchored

Fixed securely in position

rootedFirmly established in place
stationaryNot in motion
staticWithout motion or change

immovable · stuck · fastened · moored · tethered · pinned · secured · embedded · planted · rigid

biological

sessile

Attached at base

ciliaHairlike cellular projections
flagellaWhiplike locomotion appendages
spermMale reproductive cell

spermatozoa · gamete · akinetic · microorganism · bacteria · protozoa · cell · organism · reproductive · infertility

inert

dormant

Inactive but capable

lifelessDevoid of animation
inanimateNot alive, never was
quiescentInactive but capable

latent · nonreactive · unresponsive · passive · suspended · stagnant · torpid · sluggish · lethargic · petrified

paralyzed

paralysis

Loss of muscle function

paraplegiaLower body immobility
quadriplegiaParalysis below the neck
palsyParalysis with trembling

flaccid · immobilized · incapacitated · bedridden · nonambulatory · spinal cord injury · neuropathy · myopathy · dystrophy · atrophy

Opposites

capacity for movement

immotilemotile

Able to move independently

mobile · moving · active · movable · moveable

Family

move, remote, emotion, motion, promote, immobile, locomotive, immobility, motility

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