| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | inflexible |
| Synonyms: | adamant, adamantine, determined, dogged, dyed-in-the-wool, firm, fixed, hard, hard-and-fast, immovable, immutable, implacable, indomitable, inexorable, intractable, invariable, iron, ironclad, obdurate, obstinate, relentless, resolute, rigid, rigorous, set, set in one's ways, single-minded, stand one's ground, staunch, steadfast, steely, stiff, strict, stringent, unadaptable, unalterable, unbending, unchangeable, uncompliant, uncompromising, unrelenting, unswayable, unyielding |
| Main Entry: | invariable |
| Part of Speech: | adjective |
| Definition: | not changing |
| Synonyms: | changeless, consistent, constant, fixed, immovable, immutable, inalterable, inflexible, monotonous, perpetual, regular, rigid, same, set, static, unalterable, unchangeable, unchanging, undiversified, unfailing, uniform, unmodifiable, unrelieved, unvarying, unwavering |
| Antonyms: | changeable, changing, variable, varying |
| Main Entry: | unchangeable |
| Part of Speech: | adjective |
| Definition: | constant, steadfast |
| Synonyms: | changeless, continuing, firm, fixed, immovable, immutable, inalterable, inevitable, inflexible, invariable, irreversible, permanent, resolute, stable, strong, unalterable, unmodifiable, unmovable |
| Antonyms: | changeable, changing, inconstant, intermittent, temporary |
| Main Entry: | unalterable |
| Part of Speech: | adjective |
| Definition: | not changeable |
| Synonyms: | firm, fixed, immutable, inalterable, inflexible, permanent, rigid, unchangeable |
| Antonyms: | alterable |