effet secondaire

\e.fɛ sə.ɡɔ̃.dɛʁ\

/\e.fɛ sə.ɡɔ̃.dɛʁ\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“effet secondaire” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
16
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Effet distinct de celui initialement espéré.

Key facts for effet secondaire
PropertyValue
Headwordeffet secondaire
LanguageFrench
Part of speechNoun
IPA\e.fɛ sə.ɡɔ̃.dɛʁ\
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “effet secondaire” sits in French frequency

effet secondaire falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

effet secondaire is uncommon French outside the top frequency list, classed as anoun, transcribed \e.fɛ sə.ɡɔ̃.dɛʁ\. Rarity is why readers land here mid-draft. 3 senses are on record.

Our edit-distance generator produced no likely misspellings for effet secondaire, suggesting the orthography follows predictable French patterns. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

This entry's etymology isn't recorded, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is effet secondaire, spelled E-F-F-E-T- -S-E-C-O-N-D-A-I-R-E.

Definition

  1. 1
    Effet distinct de celui initialement espéré.
  2. 2
    Effet indésirable d’un médicament.
  3. 3
    Modification de valeurs du programme autres que celles explicitement spécifiées lors de l’appel d’une fonction ou un sous-programme.

Synonyms

effet latéraldeutergieeffet de bord

This word in other languages

side effect(English)Nebenwirkung(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "effet secondaire"?
"effet secondaire" is spelled E-F-F-E-T- -S-E-C-O-N-D-A-I-R-E. The IPA pronunciation is \e.fɛ sə.ɡɔ̃.dɛʁ\.
What does "effet secondaire" mean?
As a noun, "effet secondaire" means: Effet distinct de celui initialement espéré.
How do you pronounce "effet secondaire"?
The IPA (International Phonetic Alphabet) transcription for "effet secondaire" is \e.fɛ sə.ɡɔ̃.dɛʁ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "effet secondaire" come from?
"effet secondaire" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “effet secondaire”

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

  • The one correct French spelling is E-F-F-E-T- -S-E-C-O-N-D-A-I-R-E - every other letter order is a misspelling in standard orthography.
  • Say it as \e.fɛ sə.ɡɔ̃.dɛʁ\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more French words and confusable pairs in the same reference. French 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