He did it unbeknownst to me.
Source: tatoeba (250095)
Unbeknownst
//ˌʌnbɪˈnoʊnst//
Synonyms for "unbeknownst" (6 found)
Ranked by relevance and common usage.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Translations
21 translations across 18 languages.
Arabic
1 entries- مُبْهَم adj (without the knowledge of)
Bulgarian
1 entries- непознат adj (without the knowledge of)
Chinese Mandarin
1 entries- 在不知道的情況下 /在不知道的情况下 adj (without the knowledge of)
Danish
1 entries- uden ngns vidende adj (without the knowledge of)
Dutch
1 entries- buiten medeweten van adj (without the knowledge of)
Esperanto
1 entries- nesciate de adj (without the knowledge of)
French
1 entries- à l’insu de adj (without the knowledge of)
German
1 entries- ohne Wissen adj (without the knowledge of)
Greek
1 entries- εν αγνοία adj (without the knowledge of)
Hungarian
2 entries- tudta nélkül adj (without the knowledge of)
- tudtán kívül adj (without the knowledge of)
Irish
1 entries- gan fhios adj (without the knowledge of)
Italian
1 entries- all'insaputa adj (without the knowledge of)
Polish
1 entries- bez wiedzy adj (without the knowledge of)
Portuguese
1 entries- sem o conhecimento de adj (without the knowledge of)
Russian
1 entries- без ве́дома adj (without the knowledge of)
Spanish
2 entries- desconocido adj (without the knowledge of)
- sin el conocimiento de adj (without the knowledge of)
Swedish
2 entries- någon ovetande adj (without the knowledge of)
- någon ovetandes adj (without the knowledge of)
Welsh
1 entries- heb yn wybod i adj (without the knowledge of)
Sample sentences
10 total sentences available.
Unbeknownst to him, at the space hotel, there was a musically complimented Mexican restaurant surrounded by gigantic cages full of tropical parrots and other birds.
Source: tatoeba (1465702)
Unbeknownst to Tom, Mary was having it off with the milkman.
Source: tatoeba (3186826)
Sami and Layla continued their secret affair unbeknownst to their spouses.
Source: tatoeba (6363647)
Showing 4 of 10 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.