• synonyms


or tran·quil·lize

See more synonyms for tranquilize on Thesaurus.com
verb (used with or without object), tran·quil·ized, tran·quil·iz·ing.
  1. to make or become tranquil.
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Also especially British, tran·quil·lise.

Origin of tranquilize

First recorded in 1615–25; tranquil + -ize
Related formstran·quil·i·za·tion, nounun·tran·quil·ize, verb (used with object), un·tran·quil·ized, un·tran·quil·iz·ing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for tranquilization

moderation, conciliation, easing, alleviation, abatement, reconciliation, settlement, solace, grant, lessening, mitigation, compromise, reparation, assuagement, restoration, accommodation, adjustment, amends, concession, mollification

Word Origin and History for tranquilization



1620s, from tranquil + -ize. Related: Tranquilized; tranquilizing.

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Online Etymology Dictionary, © 2010 Douglas Harper

tranquilization in Medicine


  1. To make tranquil; pacify.
  2. To sedate or relieve of anxiety or tension by the administration of a drug.
  3. To become tranquil; relax.
  4. To have a calming or soothing effect.
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Related formstran′quil•i•zation (-kwə-lĭ-zāshən) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.