先理解核心含义，再看它在真实句子里的用法。
不确定；不可靠
n. being unsettled or in doubt or dependent on chance
Choose the next layer that will help you use uncertainty with more confidence.
Recommended next
Learn how to use this word with grammar patterns and natural collocations.
See typical errors learners make and confusing words to avoid.
More ways to explore
Expand your vocabulary with synonyms and antonyms.
Explore words with similar spelling endings or sounds.
Discover the etymology and cognates of this word.
Analyze the context and learn memory tricks to remember it.
Use uncertainty naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Dictionary facts from ECDICT.