| Main Entry: | adamantine |
| Part of Speech: | adjective |
| Definition: | stubborn |
Synonyms: |
adamant, firm, hardheaded, implacable, incompliant, inexorable, inflexible, intransigent, mulish, obdurate, obstinate, opinionated, pigheaded, relentless, remorseless, rigid, unbendable, unbending, unbreakable, uncompliant, uncompromising, unrelenting, unyielding |
| Main Entry: | adamant |
| Part of Speech: | adjective |
| Definition: | hard like rock |
Synonyms: |
adamantine, flinty, impenetrable, indestructible, rock-hard, tough, unbreakable |
Antonyms: |
flexible, soft, supple |
| Main Entry: | hard |
| Part of Speech: | adjective |
| Definition: | rocklike |
Synonyms: |
adamantine, callous, compact, compacted, compressed, concentrated, consolidated, dense, firm, hardened, impenetrable, indurate, indurated, inflexible, iron, packed, rigid, rocky, set, solid, stiff, stony, strong, thick, tough, unyielding |
Antonyms: |
flexible, malleable, pliable, pliant, soft, yielding |
| Main Entry: | inexorable |
| Part of Speech: | adjective |
| Definition: | cruel, pitiless |
Synonyms: |
adamant, adamantine, bound, bound and determined, compulsory, dead set on, dogged, hard, harsh, hell bent on, immobile, immovable, implacable, ineluctable, inescapable, inflexible, ironclad, like death and taxes, locked in, mean business, merciless, necessary, no going back, obdurate, obstinate, relentless, remorseless, resolute, rigid, set in stone, severe, single-minded, stubborn, unappeasable, unbending, uncompromising, unmovable, unrelenting, unyielding |
Antonyms: |
flexible, lenient, merciful, remorseful, yielding |
| Main Entry: | inflexible |
| Part of Speech: | adjective |
| Definition: | stubborn |
Synonyms: |
adamant, adamantine, determined, dogged, dyed-in-the-wool, firm, fixed, hard, hard-and-fast, immovable, immutable, implacable, indomitable, inexorable, intractable, iron, 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, unbending, unchangeable, uncompliant, uncompromising, unrelenting, unswayable, unyielding |
Antonyms: |
flexible, reasonable, willing, yielding |
| Main Entry: | iron |
| Part of Speech: | adjective |
| Definition: | hard, tough; inflexible |
Synonyms: |
adamant, adamantine, cruel, dense, ferric, ferrous, firm, heavy, immovable, implacable, indomitable, inexorable, insensible, obdurate, relentless, rigid, robust, steel, steely, strong, stubborn, thick, unbending, unyielding |
| Notes: | ferrum is the Latin name for iron, from which its chemical symbol Fe is derived; iron exists in various states of impurity and it is processed to produce cast iron, wrought iron, etc. and steel (steel is iron to which carbon and other things have been added) |
Antonyms: |
flexible, soft, weak |
| 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: | unbreakable |
| Part of Speech: | adjective |
| Definition: | strong, tough |
Synonyms: |
adamantine, armored, brass-bound, durable, everlasting, firm, incorruptible, indestructible, infrangible, invulnerable, lasting, nonbreakable, perdurable, resistant, rugged, shatterproof, solid, tight, toughened, unshakable, unyielding |
Antonyms: |
breakable, delicate, fragile, weak |
| Main Entry: | diamondlike |
| Part of Speech: | adjective |
| Definition: | resembling or of a diamond |
Synonyms: |
adamantine, diamondiferous |
| Main Entry: | hard-bitten |
| Part of Speech: | adjective |
| Definition: | hard |
Synonyms: |
adamantine, callous, compact, compacted, compressed, concentrated, consolidated, dense, firm, hard as nails, hard-handed, hardened, hardy, impenetrable, indurate, indurated, inflexible, iron, packed, rigid, rocky, rugged, set, solid, stiff, stony, strong |