réactif vs réactifs, What's the Difference?

Which to use

“réactif” and “réactifs” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,866
“réactif” frequency rank: #26,163
“réactifs” frequency rank: 45029
confusion score

Side-by-Side Comparison

Feature	réactif	réactifs
Definition	Qui réagit ou fait réagir.	Masculin pluriel de réactif.

Where the spellings diverge

Shared letters are muted; the letters that actually set réactif and réactifs apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.

7 ch

réactif

8 ch

réactifs

Spelling & Dictionary Insight

This is the hard kind. réactif and réactifs are pronounced identically (\ʁe.ak.tif\) and both work as anadjective. Neither the ear nor the grammar will rescue you; only the meaning does, so the glosses below are the whole decision. They differ by 1 extra letter(s) - “réactif” sits inside “réactifs”. Our composite confusion score for this pair is 45029, derived from the frequency rank of both members and their visual similarity.

réactif is recorded at frequency rank #18,866, classified as anadj, pronounced \ʁe.ak.tif\. réactifs is at rank #26,163, tagged as anadj, pronounced \ʁe.ak.tif\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 45029, this pair ranks #205,941 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of réactif vs réactifs

Shared letters: acfirté. Private to "réactif": -. Private to "réactifs": s.

"réactif" · 7 letters · shape CVVCCVC · "réactifs" · 8 letters · shape CVVCCVCC

Frequency comparison

réactif#18,866

réactifs#26,163

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "réactif" and "réactifs" be used interchangeably?

No. They are pronounced the same (\ʁe.ak.tif\), which is exactly why they get swapped in writing, but the dictionary meanings above are different, and pronunciation is no guide here.

Which is more common, "réactif" or "réactifs"?

"réactif" is the more common of the two: it sits at frequency rank #18,866 in our French list, against #26,163 for "réactifs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering réactif vs réactifs

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “réactif” entry
Browse more pairs most likely to be confused. Most confusable