All immutably synonyms

adverb immutably

• unalterably — not capable of being altered, changed, or modified.
• unassailably — not open to attack or assault, as by military force or argument: unassailable fortifications; unassailable logic.
• constantly — not changing or varying; uniform; regular; invariable: All conditions during the three experiments were constant.
• firmly — not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid: firm ground; firm texture.
• fixedly — fastened, attached, or placed so as to be firm and not readily movable; firmly implanted; stationary; rigid.
• rigidly — stiff or unyielding; not pliant or flexible; hard: a rigid strip of metal.