complémentaire
French, adjective/kɔ̃.ple.mɑ̃.tɛʁ/
complémentaire is spelled C-O-M-P-L-É-M-E-N-T-A-I-R-E (14 letters) and appears 8.9 times per million words in written French, the 7,293rd most frequent French word form (wordfreq, 2021 data). Complémentaire is a French adjective meaning “complementary” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Qui sert à compléter”.
What does complémentaire mean in English?
adjective
- 1
complementary
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
adjective: 1. Qui sert à compléter. 2. Dont la somme vaut un angle droit. 3. Dont la réunion forme la couleur blanche en synthèse additive mais noire en synthèse soustractive.
noun: 1. Complémentaire d’une partie X d’un ensemble Y : ensemble des éléments de Y n’appartenant pas à X. 2. Complément.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of complémentaire
- complémentaires plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce complémentaire?
- /kɔ̃.ple.mɑ̃.tɛʁ/
- \kɔ̃.ple.mɑ̃.tɛʁ\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to complémentaire
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is complémentaire in French?
complémentaire appears 8.9 times per million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).