RichThesaurus
invariant
invariant
synonyms
changeless
unvarying
constant
unalterable
set
fixed
invariable
unchangeable
immutable
steady
consistent
fast
static
deep-rooted
enduring
set in stone
perdurable
unfluctuating
permanent
unfading
uniform
abiding
cast-iron
irreversible
established
decided
regular
unchanging
hard and fast
undeviating
unvaried
unwavering
lasting
indestructible
perpetual
lifelong
ineradicable
firm
monotonous
predictable
eternal
incommutable
stable
one-note
monotonal
unaltering
uncheckered
unfailing
relentless
solid
more synonyms
invariant
antonyms
variable
varied
changeable