changeless

词义辨析：

同义:

a.稳定不变的, 可靠的, 稳固的

immutable

unchangeable

invariable

unalterable

incommutable

irreversible

inflexible

unwavering

steadfast

steady

reliable

dependable

firm

fast

fixed

constant

solid

stable

a.一成不变的, 持续不变的

enduring

abiding

lasting

persisting

perdurable

indissoluble

perpetual

perennial

deathless

undying

immortal

eternal

eterne

everlasing