sidéré
French, adjective
sidéré is spelled S-I-D-É-R-É (6 letters) and appears about once in every 1 million words in written French, the 38,202nd most frequent French word form (wordfreq, 2021 data). Sidéré is a French adjective meaning “flabbergasted” (English Wiktionary, September 2026). It is also a past participle of sidérer. With an accent, sidère is a different word: “first/third-person singular present indicative/subjunctive”. The French Wiktionary (Wiktionnaire) defines it as “Qui est frappé de stupeur”.
What does sidéré mean in English?
adjective
- 1
flabbergasted
verb
- 1
past participle of sidérer
verb
- 1
first/third-person singular present indicative/subjunctive
- 2
second-person singular imperative
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
adjective: 1. Qui est frappé de stupeur.
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 sidéré
- sidérée feminine
- sidérés masculine plural
- sidérées feminine plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
English words that translate to sidéré
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is sidéré in French?
sidéré appears about once in every 1 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).