Word.ws English Dictionary

unreactive

unreactive adjective: not reactive; relatively inert.

Adjective

unreactive (comparative more unreactive, superlative most unreactive)

  1. Not reactive; relatively inert.
  2. That does not respond to a stimulation.

Synonyms of unreactive

Antonyms

Forms of unreactive

comparativemore unreactive
superlativemost unreactive
alternative formun-reactive

Origin of unreactive

From un- + reactive.

Words formed from unreactive

Questions about unreactive

What does unreactive mean?
Unreactive means not reactive; relatively inert.
What part of speech is unreactive?
Unreactive is an adjective.

Words near unreactive in the dictionary

  1. unreact
  2. unreactable
  3. unreacted
  4. unreacting
  5. unreactivated
  6. unreactive
  7. unreactiveness
  8. unreactivity
  9. unreacts
  10. unread
  11. unreadability

Source and license

Adapted from Wiktionary: unreactive (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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