unknown
/ˌʌnˈnəʊn/ · /ˌʌnˈnoʊn/
CEFR level B1Topic ThinkingWord #2280 in the learning path
未知的；不为人知的
Definitions
adj. Not known, identified, or familiar.
未知的；不为人知的
n. Something not yet understood, or a person not widely known.
未知因素；无名之辈
Example
An unknown caller rang while I was cooking dinner.
我做晚饭时，一个陌生人打来了电话。
The long-term effects of some new materials remain unknown, so further research is essential before widespread use.
某些新材料的长期影响仍不明确，因此在广泛使用前必须进一步研究。
Collocations
- remain unknown
- unknown to someone
- an unknown cause
- the unknown
Word family
- know (v.)
- known (adj.)
- knowledge (n.)
Synonyms
- unidentified
- unfamiliar
Antonyms
- known
Usage tip
the unknown泛指“未知事物或未知领域”。
FAQ
- What does unknown mean?
- Not known, identified, or familiar. Something not yet understood, or a person not widely known.
- How is unknown pronounced?
- UK /ˌʌnˈnəʊn/, US /ˌʌnˈnoʊn/. Use the audio buttons above to listen.
