reactive

/ɹiːˈæktɪv/

//ɹiːˈæktɪv// adj

"reactive" is a 8-letter English headword indexed on PlainSpell.

The verdict

“reactive” is a moderately-common English word, ranked #14,199 in English word frequency and used as an adjective.

#14,199
frequency rank, English
8
letters
11
tracked misspellings
7
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - That reacts or responds to a stimulus.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

reactive vs receive
75% similar
reactive vs relative
75% similar
reactive vs realtime
75% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for reactive
PropertyValue
Headwordreactive
LanguageEnglish
Part of speechAdjective
IPA/ɹiːˈæktɪv/
Letters8
Frequency rank#14,199
Misspellings tracked11
Confusable pairs7
SourceWiktionary (kaikki.org)

Where “reactive” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). reactive lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for reactive is 8 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ɹiːˈæktɪv/. Corpus data places it at rank #14,199 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 11 likely wrong-spelling variants for reactive, with forms such as "eractive", "raective", and "reacctive". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 7 confusable-pair relationships, "receive", "relative", "realtime", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From react + -ive. The correct English form is reactive, spelled R-E-A-C-T-I-V-E.

Definition

  1. 1
    That reacts or responds to a stimulus.
  2. 2
    That readily takes part in reactions.
  3. 3
    Characterized by induction or capacitance rather than resistance.
  4. 4
    Reacting to the past rather than anticipating the future, not predictive.

Etymology

From react + -ive.

Antonyms

This word in other languages

Common misspellings

Also misspelled as: eractive,raective,reacctive,reacitve,reactiev,reactivve,reacttive,reactvie,reatcive,recative,rreactive

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of reactive - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

eractive2raective2reacctive1reacitve2reactiev2reactivve1reacttive1reactvie2
Edit distance from "reactive"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "reactive"?
"reactive" is spelled R-E-A-C-T-I-V-E. The IPA pronunciation is /ɹiːˈæktɪv/.
What does "reactive" mean?
As an adjective, "reactive" means: That reacts or responds to a stimulus.
What words are commonly confused with "reactive"?
"reactive" is commonly confused with "receive", "relative", "realtime". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "reactive"?
The IPA (International Phonetic Alphabet) transcription for "reactive" is /ɹiːˈæktɪv/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "reactive"?
From react + -ive. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “reactive”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is R-E-A-C-T-I-V-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ɹiːˈæktɪv/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “receive” - see the side-by-side comparison. reactive vs receive
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list