That's a completely unfounded rumor.
Source: tatoeba (42269)
Unfounded
Synonyms for "unfounded" (125 found)
Ranked by relevance and common usage.
Closest matches (25)
Strong matches (38)
Related words (62)
phantomseemingself-deceptiveself-deludingspeciousspectralspurioussupposititioustruthlessunactualunascertainedunattestedunauthenticunauthenticatedunauthoritativeunbaseduncalled foruncalled-foruncertifiedunconfirmed
Show 34 more words
uncorroboratedundemonstratedundeterminedunestablishedunfixedungroundedunjustifiableunjustifiedunprovedunprovenunrealunreliableunsettledunshownunsoundunsubstantialunsubstantiatedunsupportableunsupportedunsupported by evidenceunsustainableunsustaineduntenableuntesteduntrieduntrueuntruthfulunvalidatedunverifiedvainvisionarywithout basiswithout foundationwithout grounds
Adjective(6 words)
Adjective(2 words)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Synonyms
2 entriesderived from
1 entriesrelated to
7 entriessimilar
1 entriesTranslations
56 translations across 30 languages.
Armenian
1 entries- անհիմն adj (not based on solid reasons or facts)
Basque
1 entries- funsgabe adj (not based on solid reasons or facts)
Belarusian
3 entries- безгрунто́ўны adj (not based on solid reasons or facts)
- беспадста́ўны adj (not based on solid reasons or facts)
- неабгрунтава́ны adj (not based on solid reasons or facts)
Bulgarian
2 entries- необоснова́н adj (not based on solid reasons or facts)
- неоснова́телен adj (not based on solid reasons or facts)
Catalan
1 entries- infundat adj (not based on solid reasons or facts)
Chinese Mandarin
1 entries- 莫須有 /莫须有 adj (not based on solid reasons or facts)
Czech
1 entries- nepodložený adj (not based on solid reasons or facts)
Danish
2 entries- grundløs adj (not based on solid reasons or facts)
- ubegrundet adj (not based on solid reasons or facts)
Eastern Mari
1 entries- амалдыме adj (not based on solid reasons or facts)
Finnish
2 entries- perusteeton adj (not based on solid reasons or facts)
- perätön adj (not based on solid reasons or facts)
French
4 entries- dénué de fondement adj (not based on solid reasons or facts)
- infondé adj (not based on solid reasons or facts)
- non fondé adj (not based on solid reasons or facts)
- sans fondement adj (not based on solid reasons or facts)
Georgian
1 entries- უსაფუძვლო adj (not based on solid reasons or facts)
German
2 entries- grundlos adj (not based on solid reasons or facts)
- unbegründet adj (not based on solid reasons or facts)
Hebrew
1 entries- חסר בסיס adj (not based on solid reasons or facts)
Hungarian
2 entries- alaptalan adj (not based on solid reasons or facts)
- megalapozatlan adj (not based on solid reasons or facts)
Japanese
1 entries- 根拠のない adj (not based on solid reasons or facts)
Korean
1 entries- 근거가 없는 adj (not based on solid reasons or facts)
Māori
1 entries- mākiri adj (not based on solid reasons or facts)
Northern Kurdish
1 entries- bêbingeh adj (not based on solid reasons or facts)
Norwegian Bokmål
3 entries- grunnlaus adj (not based on solid reasons or facts)
- grunnløs adj (not based on solid reasons or facts)
- ubegrunnet adj (not based on solid reasons or facts)
Norwegian Nynorsk
1 entries- grunnlaus adj (not based on solid reasons or facts)
Polish
3 entries- bezpodstawny adj (not based on solid reasons or facts)
- bezzasadny adj (not based on solid reasons or facts)
- nieuzasadniony adj (not based on solid reasons or facts)
Portuguese
1 entries- infundado adj (not based on solid reasons or facts)
Romanian
2 entries- nefondat adj (not based on solid reasons or facts)
- neîntemeiat adj (not based on solid reasons or facts)
Russian
3 entries- безоснова́тельный adj (not based on solid reasons or facts)
- беспо́чвенный adj (not based on solid reasons or facts)
- необосно́ванный adj (not based on solid reasons or facts)
Spanish
4 entries- infundado adj (not based on solid reasons or facts)
- infundamentado adj (not based on solid reasons or facts)
- non fundamentado adj (not based on solid reasons or facts)
- que no tiene ni pies ni cabeza adj (not based on solid reasons or facts)
Swedish
3 entries- grundlös adj (not based on solid reasons or facts)
- obefogad adj (not based on solid reasons or facts)
- ogrundad adj (not based on solid reasons or facts)
Turkish
3 entries- asılsız adj (not based on solid reasons or facts)
- köksüz adj (not based on solid reasons or facts)
- temelsiz adj (not based on solid reasons or facts)
Ukrainian
2 entries- безпідста́вний adj (not based on solid reasons or facts)
- необґрунто́ваний adj (not based on solid reasons or facts)
Vietnamese
1 entries- vô căn cứ adj (not based on solid reasons or facts)
Sample sentences
19 total sentences available.
The allegations they made were unfounded.
Source: tatoeba (525152)
The CEO is trying to quash these unfounded rumors about a merger.
Source: tatoeba (676288)
Your argument is unfounded.
Source: tatoeba (2900754)
Showing 4 of 19 available sentences.
Keep exploring
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.