| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | fixed, unchangeable |
| Synonyms: | certain, changeless, constant, doomed, established, fated, final, immutable, indelible, inevitable, invariable, irremediable, irretrievable, irreversible, lost, permanent, predestined, predetermined, settled, unalterable, unrepealable, unreversible |
| Antonyms: | alterable, changeable, reversible, revocable |
| Main Entry: | rigid |
| Part of Speech: | adjective |
| Definition: | stiff, strict, severe |
| Synonyms: | adamant, adamantine, austere, bullheaded, changeless, chiseled, dead set, definite, determined, exact, firm, fixed, hard, hard-line, harsh, incompliant, inelastic, inexorable, inflexible, intransigent, invariable, locked in, obdurate, rigorous, set, set in stone, single-minded, solid, static, stern, strait-laced, stringent, tough nut to crack, unalterable, unbending, unbreakable, unchanging, uncompromising, undeviating, unmoving, unpermissive, unrelenting, unyielding |
| Antonyms: | bending, flexible, lenient, limber, pliable, pliant, soft, yielding |
| Main Entry: | severe |
| Part of Speech: | adjective |
| Definition: | uncompromising, stern |
| Synonyms: | astringent, austere, biting, caustic, close, cold, cruel, cutting, disapproving, dour, earnest, firm, flinty, forbidding, grave, grim, hard, hard-nosed, harsh, inconsiderate, inexorable, inflexible, iron-handed, obdurate, oppressive, peremptory, pitiless, relentless, resolute, resolved, rigid, satirical, scathing, serious, sober, stern, stiff*, strait-laced, strict, tight-lipped, unalterable, unbending, unchanging, unfeeling, unrelenting, unsmiling, unsparing |
| Antonyms: | amenable, compromising, easy-going, friendly, willing |
| Main Entry: | stable |
| Part of Speech: | adjective |
| Definition: | constant, fixed; resistant |
| Synonyms: | abiding, anchored, balanced, brick-wall, calm, deep-rooted, durable, enduring, equable, established, even, fast, firm, immutable, invariable, lasting, nailed, perdurable, permanent, poised, reliable, resolute, safe, secure, set, set in stone, solid, solid as a rock, sound, stabile, stalwart, stationary, staunch, staying put, steadfast, steady, stout, strong, sturdy, substantial, sure, together, tough, unalterable, unchangeable, unfluctuating, uniform, unvarying, unwavering, well-built, well-founded |
| Antonyms: | inconstant, shaky, unfixed, unstable, wobbly |
| Main Entry: | tough |
| Part of Speech: | adjective |
| Definition: | obstinate, rough |
| Synonyms: | adamant, arbitrary, callous, confirmed, cruel, desperate, drastic, exacting, ferocious, fierce, firm, fixed, hard, hard-bitten, hard-boiled, hard-line, hard-nosed, hard-shelled, harsh, headstrong, immutable, inflexible, intractable, merciless, narrow, obdurate, pugnacious, refractory, resolute, ruffianly, ruthless, savage, severe, stern, stiff, strict, stubborn, taut, terrible, unalterable, unbending, uncompromising, uncontrollable, unforgiving, unmanageable, unyielding, vicious, violent |
| Antonyms: | gentle, kind, nice, tender |
| 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: | uniform |
| Part of Speech: | adjective |
| Definition: | consistent |
| Synonyms: | compatible, consonant, constant, equable, even, fated, fateful, fixed, habitual, homogeneous, immutable, incorrigible, inflexible, invariable, irreversible, level, methodical, monolithic, normal, of a piece, ordered, orderly, ossified, plumb, regular, reliable, rigid, smooth, stable, static, steady, straight, symmetrical, systematic, true, unalterable, unbroken, unchanging, undeviating, undiversified, unfluctuating, unmodifiable, unvarying, well-balanced, well-proportioned |
| Antonyms: | changing, different, divergent, inconsistent, varied |
| Main Entry: | hard-and-fast |
| Part of Speech: | adjective |
| Definition: | strict |
| Synonyms: | absolute, binding, carved in stone, compulsory, conclusive, decisive, dictated, exacting, final, inflexible, irrevocable, mandatory, set, set in concrete, unalterable, unbending, written |
| Main Entry: | inalterable |
| 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 |