of spores or microorganisms Not capable of movement.

synonym: nonmotile.

Roget 265: quiescent, still; motionless, moveless; fixed; stationary; immotile; at rest at a stand, at a standstill, at anchor; stock, still; standing still etc. v.; sedentary, untraveled, stay-at-home; becalmed, stagnant, quiet; unmoved, undisturbed, unruffled; calm, restful; cataleptic; immovable etc. (stable) 150; sleeping etc. (inactive) 683; silent etc. 403; still as a statue, still as a post, still as a mouse, still as death; vegetative, vegetating.    ... show more