Synonyms of unmodifiable

1 Syllable

set, same

2 Syllables

static, rigid, fixed, constant

3 Syllables

regular, perpetual, unchanging, uniform, consistent, unfailing, unvarying, changeless

4 Syllables

immovable, immutable, invariable, monotonous, unwavering, unchangeable, unrelieved, inflexible

5 Syllables

unalterable, inalterable, undiversified