adj. 25B6; adjective
lock your bike to something immovable : FIXED, secure, stable, moored, anchored, braced, set firm, set fast; stuck, jammed, stiff, unbudgeable.
he sat immovable : MOTIONLESS, unmoving, stationary, still, stock-still, not moving a muscle, rooted to the spot; transfixed, paralysed, frozen.
she was immovable in her loyalties : STEADFAST, unwavering, unswerving, resolute, determined, firm, unshakeable, unfailing, dogged, tenacious, inflexible, unyielding, unbending, uncompromising, iron-willed; N. Amer. rock-ribbed.
mobile, moving.