zweifelhaft
German, adjective[ˈt͡svaɪ̯fl̩haft]
zweifelhaft is spelled Z-W-E-I-F-E-L-H-A-F-T (11 letters) and appears 2.7 times per million words in written German, the 19,537th most frequent German word form (wordfreq, 2021 data). Zweifelhaft is a German adjective meaning “doubtful, not certain” (English Wiktionary, September 2026). The German Wiktionary defines it as “nicht sicher; Zweifel hervorrufend”.
What does zweifelhaft mean in English?
adjective
- 1
doubtful, not certain
- 2
dubious, questionable
Source: English Wiktionary, German section, dump of September 2, 2026 (CC BY-SA 4.0).
How German dictionaries define it
adjective: 1. nicht sicher; Zweifel hervorrufend 2. bedenklich, fragwürdig
The definition in the German Wiktionary, in German.
Source: German Wiktionary, dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of zweifelhaft
- zweifelhafter masculine nominative singular
- am zweifelhaftesten superlative
- zweifelhafte feminine nominative singular
- zweifelhaftes neuter nominative singular
- zweifelhaften genitive masculine singular
- zweifelhaftem dative masculine singular
- der zweifelhafte definite includes-article masculine
- die zweifelhafte definite feminine includes-article
- das zweifelhafte definite includes-article neuter
- die zweifelhaften definite includes-article nominative
- des zweifelhaften definite genitive includes-article
- der zweifelhaften definite feminine genitive
- dem zweifelhaften dative definite includes-article
Source: English Wiktionary and German Wiktionary (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce zweifelhaft?
- [ˈt͡svaɪ̯fl̩haft]
Sources: English Wiktionary, German Wiktionary (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to zweifelhaft
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is zweifelhaft in German?
zweifelhaft appears 2.7 times per million words in written German.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).