[ kuhn-dish-uhnd ]
/ kənˈdɪʃ ənd /


existing under or subject to conditions.
characterized by a predictable or consistent pattern of behavior or thought as a result of having been subjected to certain circumstances or conditions.
Psychology. proceeding from or dependent on a conditioning of the individual; learned; acquired: conditioned behavior patterns.Compare unconditioned(def 2).
made suitable for a given purpose.
accustomed; inured.

Nearby words

  1. conditional operation,
  2. conditional probability,
  3. conditional sale,
  4. conditionalization,
  5. conditionally,
  6. conditioned response,
  7. conditioned stimulus,
  8. conditioned suppression,
  9. conditioner,
  10. conditioning

Origin of conditioned

late Middle English word dating back to 1400–50; see origin at condition, -ed2

Related formsnon·con·di·tioned, adjectiveself-con·di·tioned, adjectivesem·i·con·di·tioned, adjectivewell-con·di·tioned, adjective


[ kuh n-dish-uh n ]
/ kənˈdɪʃ ən /


verb (used with object)

verb (used without object)

to make conditions.

Origin of condition

1275–1325; Middle English condicioun < Anglo-French; Old French < Latin condiciōn- (stem of condiciō) agreement, equivalent to con- con- + dic- say (see dictate) + -iōn- -ion; spelling with t by influence of Late Latin or Medieval Latin forms; compare French condition

SYNONYMS FOR condition
1. See state. 8. requirement, proviso.

Related formscon·di·tion·a·ble, adjectiveun·con·di·tion, verb (used with object) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for conditioned

British Dictionary definitions for conditioned


/ (kənˈdɪʃənd) /


psychol of or denoting a response that has been learnedCompare unconditioned
(foll by to) accustomed; inured; prepared by training


/ (kənˈdɪʃən) /


verb (mainly tr)

Word Origin for condition

C14: from Latin conditiō, from condīcere to discuss, agree together, from con- together + dīcere to say

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 conditioned
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for conditioned


[ kən-dĭshənd ]


Exhibiting or trained to exhibit a conditioned response.
Physically fit.


[ kən-dĭshən ]


A disease or physical ailment.
A state of health or physical fitness.


To cause an organism to respond in a specific manner to a conditioned stimulus in the absence of an unconditioned stimulus.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with conditioned


see in condition; mint condition; on condition that; out of condition.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.