not flexible; incapable of or resistant to being bent; rigid: an inflexible steel rod.
of a rigid or unyielding temper, purpose, will, etc.; immovable: an inflexible determination.
not permitting change or variation; unalterable: inflexible rules.

Nearby words

  1. inflection,
  2. inflection point,
  3. inflectional,
  4. inflexed,
  5. inflexibility,
  6. inflexion,
  7. inflict,
  8. infliction,
  9. inflight,
  10. inflorescence

Origin of inflexible

1350–1400; Middle English < Latin inflexibilis rigid, unbending. See in-3, flexible

SYNONYMS FOR inflexible
1. unbendable, stiff. 2. rigorous, stern, unrelenting, unremitting, stubborn, obstinate, intractable, obdurate, unbending, adamant. Inflexible, relentless, implacable, inexorable imply having the quality of not being turned from a purpose. Inflexible means unbending, adhering undeviatingly to a set plan, purpose, or the like: inflexible in interpretation of rules; an inflexible will. Relentless suggests so pitiless and unremitting a pursuit of purpose as to convey a sense of inevitableness: as relentless as the passing of time. Implacable means incapable of being placated or appeased: implacable in wrath. Inexorable means unmoved by prayer or entreaty: inexorable in demanding payment. 3. undeviating.

Related formsin·flex·i·bil·i·ty, in·flex·i·ble·ness, nounin·flex·i·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inflexibility

British Dictionary definitions for inflexibility



not flexible; rigid; stiff
obstinate; unyielding
without variation; unalterable; fixed
Derived Formsinflexibility or inflexibleness, nouninflexibly, adverb

Word Origin for inflexible

C14: from Latin inflexībilis; see inflect

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for inflexibility
Online Etymology Dictionary, © 2010 Douglas Harper