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refractory

[ri-frak-tuh-ree]
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SEE MORE SYNONYMS FOR refractory ON THESAURUS.COM

adjective

hard or impossible to manage; stubbornly disobedient: a refractory child.
resisting ordinary methods of treatment.
difficult to fuse, reduce, or work, as an ore or metal.

noun, plural re·frac·to·ries.

a material having the ability to retain its physical shape and chemical identity when subjected to high temperatures.
refractories, bricks of various shapes used in lining furnaces.

RELATED WORDS

firm, stiff, contrary, disobedient, headstrong, mulish, obstinate, unmanageable, unruly, willful, hard, rigid, bullheaded, cantankerous, difficult, incorrigible, intractable, opinionated, perverse, rebellious

Origin of refractory

1600–10; variant of refractary (by analogy with adjectives in -ory1) < Latin refrāctārius stubborn, obstinate, equivalent to refrāct(us) (see refract) + -ārius -ary
Related formsre·frac·to·ri·ly, adverbre·frac·to·ri·ness, nounun·re·frac·to·ry, adjective

Synonyms for refractory

SEE MORE SYNONYMS FOR refractory ON THESAURUS.COM
1. obstinate, perverse, mulish, headstrong, intractable, disobedient, recalcitrant, ungovernable. See unruly.

Antonyms for refractory

1. obedient, tractable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for refractory

Contemporary Examples of refractory

Historical Examples of refractory

  • He bid me tell you so, when he went out, if I found you refractory.

    Clarissa, Volume 1 (of 9)

    Samuel Richardson

  • She tugs and pulls, and thumps the refractory thing on the floor.

    Lotus Buds

    Amy Carmichael

  • Together and with whisperings, they fidgeted with the refractory catch.

    Mary-'Gusta

    Joseph C. Lincoln

  • Grace, who was struggling with a refractory window, paused for breath.

    Keziah Coffin

    Joseph C. Lincoln

  • James was a refractory and disobedient child from the very cradle.

    An Old Sailor's Yarns

    Nathaniel Ames

British Dictionary definitions for refractory

refractory

adjective

unmanageable or obstinate
med not responding to treatment
(of a material) able to withstand high temperatures without fusion or decomposition

noun plural -ries

a material, such as fireclay or alumina, that is able to withstand high temperatures: used to line furnaces, kilns, etc
Derived Formsrefractorily, adverbrefractoriness, noun

Word Origin for refractory

C17: variant of obsolete refractary; see refract
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 refractory
adj.

"stubborn, obstinate, perverse," 1610s (earlier refractorious, 1550s, refractary, c.1600), from Latin refractarius "obstinate, stubborn," from past participle stem of refringere (see refraction). Related: Refractorily; refractoriness.

Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for refractory

refractory

[rĭ-frăk′tə-rē]

adj.

Resistant to treatment, as a disease.
Unresponsive to stimuli, as a muscle or nerve fiber.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for refractory

refractory

[rĭ-frăk′tə-rē]

Having a high melting point. Ceramics that are made from clay and minerals are often refractory, as are metal oxides and carbides. Refractory materials are often used as liners in furnaces.
Resistant to heat.
Of or relating to a refractory period.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.