Usually means: Responds quickly to external stimuli.
Definitions Related words Phrases Mentions Lyrics History Colors (New!)
We found 30 dictionaries that define the word Reactive:

General (23 matching dictionaries)
  1. reactive: Longman Dictionary of Contemporary English
  2. reactive: Merriam-Webster
  3. reactive: Oxford Learner's Dictionaries
  4. reactive: American Heritage Dictionary of the English Language
  5. reactive: Collins English Dictionary
  6. reactive: Vocabulary.com
  7. Reactive, reactive: Wordnik
  8. reactive: Cambridge Advanced Learner's Dictionary
  9. reactive: Wiktionary
  10. reactive: Webster's New World College Dictionary, 4th Ed.
  11. reactive: The Wordsmyth English Dictionary-Thesaurus
  12. reactive: Infoplease Dictionary
  13. reactive: Dictionary.com
  14. Reactive (disambiguation), Reactive: Wikipedia, the Free Encyclopedia
  15. Reactive: Online Plain Text English Dictionary
  16. reactive: Webster's Revised Unabridged, 1913 Edition
  17. reactive: Rhymezone
  18. Reactive: AllWords.com Multi-Lingual Dictionary
  19. reactive: FreeDictionary.org
  20. reactive: Mnemonic Dictionary
  21. reactive: TheFreeDictionary.com

Business (2 matching dictionaries)
  1. reactive: Legal dictionary
  2. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)
  1. reactive: Encyclopedia

Medicine (3 matching dictionaries)
  1. reactive: Merriam-Webster Medical Dictionary
  2. Dorland's Illustrated Medical Dictionary (No longer online)
  3. reactive: Medical dictionary

Religion (1 matching dictionary)
  1. Scientology® and Dianetics® (No longer online)

(Note: See reactively as well.)

Google, News, Images, Wikipedia, Reddit, BlueSky
Definitions from Wiktionary (reactive)

▸ adjective:  That reacts or responds to a stimulus.
▸ adjective:  (chemistry) That readily takes part in reactions.
▸ adjective:  (electronics) Characterized by induction or capacitance rather than resistance.
▸ adjective:  Reacting to the past rather than anticipating the future, not predictive.

Similar:
sensitive, oxidizable, excited, unstable, activated, reactable, responsive, corresponsive, irritable, reactivatable, more...

Opposite:
proactive, passive, inert, unresponsive, stable

Types:
acid, base, electrophile, nucleophile, oxidizing agent, reducing agent, catalyst, more...

Phrases:
reactive power, reactive depression, Reactive arthritis, chemically reactive, reactive hyperemia, more...

Adjectives:
less, more, immunologically, human, monoclonal, cellular, non, low, abnormally, nuclear, cross

Colors:
    red,     orange,     yellow,     lime green,     electric blue, more...



▸ Words similar to Reactive

▸ Usage examples for Reactive

▸ Idioms related to Reactive

▸ Wikipedia articles (New!)

▸ Popular nouns described by Reactive

▸ Words that often appear near Reactive

▸ Rhymes of Reactive

▸ Invented words related to Reactive

Similar:
sensitive, oxidizable, excited, unstable, activated, reactable, responsive, corresponsive, irritable, reactivatable, more...

Opposite:
proactive, passive, inert, unresponsive, stable

Types:
acid, base, electrophile, nucleophile, oxidizing agent, reducing agent, catalyst, more...

Phrases:
reactive power, reactive depression, Reactive arthritis, chemically reactive, reactive hyperemia, reactive dyes, reactive component, Reactive hypoglycemia, reactive intermediate, reactive inhibition, more...

Adjectives:
less, more, immunologically, human, monoclonal, cellular, non, low, abnormally, nuclear, cross

Colors:
    red,     orange,     yellow,     lime green,     electric blue, more...



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