i Register
In some senses, immoved is marked as archaic. Watch for register when choosing this word.
adj
unmoved; motionless; at rest
An immovèd, constant, fixèd Star.
Unchanged; unaltered; unaffected.
I cared not for others; and, had the hand of fate swept from the list of the living every one of my youthful associates, I should have remained immoved and fearless.