| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | unyielding |
| Synonyms: | determined, firm, fixed, hanging tough, hard-nosed, immovable, inexorable, inflexible, insistent, intransigent, obdurate, pat, relentless, resolute, rigid, set, set in stone, standing pat, stiff, stubborn, unbendable, unbending, uncompromising, unrelenting, unshakable, unswayable |
| Antonyms: | flexible, pliant, submissive, yielding |
| Main Entry: | dogged |
| Part of Speech: | adjective |
| Definition: | determined, persistent |
| Synonyms: | adamant, bullheaded, firm, hanging tough, hard-nosed, hardheaded, indefatigable, inexorable, inflexible, insistent, mulish, obdurate, obstinate, perseverant, perseverative, persevering, pertinacious, pigheaded, relentless, resolute, rigid, single-minded, staunch, steadfast, steady, stubborn, tenacious, tough nut, unbending, unflagging, unshakable, unyielding |
| Antonyms: | indifferent, irresolute, undetermined, yielding |
| Main Entry: | firm |
| Part of Speech: | adjective |
| Definition: | unalterable, definite |
| Synonyms: | abiding, adamant, bent, bound, consistent, constant, dead set on, determined, enduring, established, exact, explicit, fixed, flat, going, hang tough, inflexible, intent, never-failing, obdurate, persevering, persistent, prevailing, resolute, resolved, set, settled, specific, stable, stand pat, stated, staunch, steadfast, steady, stipulated, strict, strong, sure, tenacious, true, unbending, unchangeable, undeviating, unflinching, unqualified, unshakable, unshaken, unwavering, unyielding |
| Antonyms: | alterable, changeable, indefinite, irresolute |
| Main Entry: | hard-line |
| Part of Speech: | adjective |
| Definition: | firm |
| Synonyms: | adamant, hard-boiled, hard-core, hard-nosed, inflexible, militant, stand pat, staunch, steadfast, stern, stiff, strict, unbending, uncompromising, ungiving, unyielding |
| Main Entry: | immovable |
| Part of Speech: | adjective |
| Definition: | fixed, stubborn |
| Synonyms: | adamant, constant, dead set on, dug in, fast, firm, hard-nosed, immobile, immotile, immutable, impassive, inflexible, intransigent, locked in, motionless, obdurate, quiescent, resolute, rooted, secure, set, set in concrete, set in stone, solid, stable, stand pat, stationary, steadfast, stick to guns, stuck, tough nut, unalterable, unchangeable, uncompromising, unmodifiable, unshakable, unwavering, unyielding |
| Antonyms: | mobile, movable, moving, unfixed |
| 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: | mulish |
| Part of Speech: | adjective |
| Definition: | obstinate |
| Synonyms: | adamant, bullheaded, dead set on, dogged, firm, hardheaded, headstrong, immovable, inflexible, intractable, obdurate, opinionated, persistent, pigheaded, recalcitrant, relentless, single-minded, steadfast, strong-minded, stubborn, tenacious |