tending to react.
pertaining to or characterized by reaction.
Electricity. pertaining to or characterized by reactance.

Nearby words

  1. reaction turbine,
  2. reaction, chemical,
  3. reaction-formation,
  4. reactionary,
  5. reactivate,
  6. reactive component,
  7. reactive depression,
  8. reactive hyperemia,
  9. reactive schizophrenia,
  10. reactive thrust

Origin of reactive

First recorded in 1705–15; react + -ive

Related forms
Can be confusedproactive reactionary reactive Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nonreactive

  • Season the venison with salt and pepper and put it into a nonreactive bowl such as a Pyrex dish.

    Fresh Picks|Daniel Boulud|November 17, 2010|DAILY BEAST
  • And it's what allows me to think about guns in a smart, nonreactive manner.

    Why I Love Guns|Meghan McCain|May 14, 2009|DAILY BEAST

British Dictionary definitions for nonreactive



readily partaking in chemical reactionssodium is a reactive metal; free radicals are very reactive
of, concerned with, or having a reactance
responsive to stimulus
(of mental illnesses) precipitated by an external causereactive depression
Derived Formsreactively, adverbreactivity (ˌriːækˈtɪvɪtɪ) or reactiveness, noun

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 nonreactive



1712, from react + -ive. Related: Reactively; reactiveness; reactivity.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for nonreactive




Tending to be responsive or to react to a stimulus.
Characterized by reaction.
Tending to participate readily in chemical reactions.

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