The longest words in French

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The longest words in French

Lesson: The longest words in French
French has some very long words—sometimes over 20 letters! These words are often used in science, medicine, politics, or religion. Learning them can help you expand your vocabulary and impress your friends!
🏆 Top 20 Long French Words (with meanings)

# 🧩 Word (French)
📏 Letters
1 anticonstitutionnellement
In a way that goes against the constitution. 25
2 intergouvernementalisation
Cooperation between governments.
26
3 désintellectualisation
Removal of intellectual aspect.
22
4 psychopharmacologique
Related to medicines that affect the brain. 21
5 incompréhensibilité
Things that cannot be understood.
19
6 transsubstantiellement
In a way related to changing substance (religion).
22
7 électroencéphalographiste
Specialist who records brain activity. 25
8 hexakosioihexekontahexaphobie
Fear of the number 666. 29
9 thyroparathyroïdectomisée
People who had thyroid and parathyroid removed. 25
10 microcinématographiquement
Related to very small-scale cinema.
26
11 institutionnalisation
Becoming official institutions.
21
12 contraventionnalisation
Changing a crime into a minor offense. 23
13 intercommunautarisation
Bringing communities together. 23
14 ultracrépidarianisme
Giving opinions without knowledge.
20
15 multidimensionnalité
Having many dimensions.
20
16 hypergammaglobulinémie
Excess of certain proteins in blood. 22
17 radioimmunoélectrophorèse
Lab technique in biology.
25
18 psychoneuroendocrinologie
Study of brain and hormones. 25
19 antidémocratiquement
In an anti-democratic way.
20
20 internationalisation
Becoming international. 20

🤔 How to use these words?

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Have fun trying to spell the longest ones!

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1. Que veut dire anticonstitutionnellement ?

2. Quel mot désigne la peur du nombre 666 ?

3. Quel mot signifie "processus de devenir une institution officielle" ?

4. Que fait un électroencéphalographiste ?

5. Quel mot est lié à une technique de laboratoire en biologie ?

6. Que signifie ultracrépidarianisme ?

7. Quel mot désigne une maladie liée à une faiblesse du système immunitaire ?

8. Quel mot signifie "d’une manière liée au cinéma en petit format" ?

9. Que veut dire contraventionnalisation ?

10. Quelle est la signification de multidimensionnalité ?

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