Synonyms: firm, fast, immobile
Definition: securely fixed in place
Usage: the post was still firm after being hit by the car
Similar words: fixed
Definition: securely placed or fastened or set
Usage: a fixed piece of wood; a fixed resistor
Synonyms: immobile
Definition: not capable of movement or of being moved
Similar words: immovable, immoveable, stabile, unmovable
Definition: not able or intended to be moved
Usage: the immovable hills
Similar words: immotile, nonmotile
Definition: (of spores or microorganisms) not capable of movement
Similar words: stiff
Definition: not moving or operating freely
Usage: a stiff hinge