adj.

1. Not easily bent; stiff or rigid.
2. Incapable of being changed; unalterable.
3. Unyielding in purpose, principle, or temper; immovable.

inflexibility in·flex'i·bil'i·ty or in·flex'i·ble·ness n.
inflexibly in·flex'i·bly adv.

SYNONYMS  inflexible, inexorable, adamant, obdurate. These adjectives mean not capable of being swayed or diverted from a course. Inflexible implies unyielding adherence to fixed principles or purposes: My boss is inflexible on many issues. Inexorable implies lack of susceptibility to persuasion: “Cynthia was inexorable—she would have none of him” (Winston Churchill). It also describes things that are inevitable, relentless, and often severe in effect: “Russia's final hour, it seemed, approached with inexorable certainty” (W. Bruce Lincoln). Adamant implies imperviousness to pleas or appeals: He is adamant about leaving right now. Obdurate implies hard, callous resistance to tender feelings: The child's misery would move even the most obdurate heart. See also synonyms at stiff.

adjective

1. Not changing shape or bending: inelastic, rigid, stiff, unbending, unyielding. See flexible/rigid.
2. Incapable of changing or being modified: immutable, inalterable, invariable, ironclad, rigid, unalterable, unchangeable. See flexible/rigid.
3. Firmly, often unreasonably immovable in purpose or will: adamant, adamantine, brassbound, die-hard, grim, implacable, incompliant, inexorable, intransigent, iron, obdurate, relentless, remorseless, rigid, stubborn, unbendable, unbending, uncompliant, uncompromising, unrelenting, unyielding. Idioms: stubborn as amuleox. See resist/yield.

adj

Definition: hardened, stiff
Antonyms: bendable, elastic, flexible, pliable, pliant, resilient, soft

adj

Definition: stubborn
Antonyms: accommodating, flexible, reasonable, willing, yielding

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IN BRIEF: Rigidly firm in will or purpose.

Important principles may, and must, be inflexible. — Abraham Lincoln (1809-1865), U.S. president.

Dansk (Danish)
adj. - ubøjelig, ukuelig, urokkelig, stiv

Nederlands (Dutch)
onbuigzaam, onbuigbaar, star

Français (French)
adj. - (fig) inflexible, rigide, rigide (un matériau)

Deutsch (German)
adj. - unbeugsam, unbiegsam, starr

Ελληνική (Greek)
adj. - άκαμπτος, αλύγιστος, ανελαστικός, άτεγκτος

Italiano (Italian)
inflessibile, rigido

Português (Portuguese)
adj. - inflexível

Русский (Russian)
негибкий, несгибаемый, неизменный

Español (Spanish)
adj. - inflexible, rígido

Svenska (Swedish)
adj. - oböjlig (isht bildl.), orörlig, oföränderlig

中文（简体） (Chinese (Simplified))
不屈曲的, 顽固的, 不屈挠的

中文（繁體） (Chinese (Traditional))
adj. - 不屈曲的, 頑固的, 不屈撓的

한국어 (Korean)
adj. - 구부려지지 않는, 불굴의, 완고한

日本語 (Japanese)
adj. - 確固とした
n. - 曲がらない, 確固たる, 不屈の, 変えられない

العربيه (Arabic)
‏(صفه) غير قابل للثني, عنيد, جامد : غير مرن‏

עברית (Hebrew)
adj. - ‮לא גמיש, שאין לשנותו, לא נכנע, עקשני, קשיח, קשוח‬

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