1
be unfounded
常用于否定指控、谣言等无根据。
The allegations against him were completely unfounded.
对他的指控完全没有根据。
没有根据的；无理由的
先理解核心含义，再看它在真实句子里的用法。
没有根据的；无理由的
without a basis in reason or fact
The allegations against him were completely unfounded.
对他的指控完全没有根据。
没有坚实基础的；不基于充分理由或事实的
Having no strong foundation; not based on solid reasons or facts.
无根据的
without a basis in reason or fact
未被建立或设立的
Not having been founded or instituted.
The police dismissed the unfounded rumor about the bank robbery.
警方驳斥了关于银行抢劫的无根据谣言。
AI contextual example
Her fears about the test turned out to be completely unfounded.
她对考试的担心结果完全是没有根据的。
AI contextual example
Critics called the report unfounded, since it contained no real evidence.
批评者称该报道毫无根据，因为它没有任何真实证据。
AI contextual example
unfounded suspicions
毫无根据的怀疑
WordNet
常用于否定指控、谣言等无根据。
The allegations against him were completely unfounded.
对他的指控完全没有根据。
修饰名词，如rumor, allegation, claim等。
They dismissed the report as an unfounded rumor.
他们驳斥该报道为毫无根据的谣言。
Not this
The rumor unfounded the politician's reputation.
Use this
The rumor is unfounded and damaged the politician's reputation.
unfounded 是形容词，不能用作动词；应使用系动词 'is' 构成谓语。
Not this
He is an unfounded person.
Use this
He is a person who makes unfounded claims.
unfounded 通常修饰观点、说法等，不直接修饰人；应改为 'makes unfounded claims' 或类似结构。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
没有根据的指控
The newspaper retracted its unfounded allegation after the investigation.
调查后，该报纸撤回了没有根据的指控。
毫无根据的谣言
She dismissed the story as an unfounded rumor.
她认为这则报道是毫无根据的谣言而不予理会。
无端的指责
He denied the unfounded accusation in court.
他在法庭上否认了这一无端的指责。
无端的恐惧
Many people have unfounded fears about the safety of vaccines.
许多人对疫苗的安全性怀有无端的恐惧。
没有根据的说法
The article makes unfounded claims about the company's finances.
这篇文章对公司财务状况的说法毫无根据。
没有根据的指控
The politician denied the unfounded allegations against him.
这名政客否认了对他的没有根据的指控。
没有根据的谣言
Unfounded rumors about the merger caused panic among employees.
关于合并的没有根据的谣言引起了员工的恐慌。
无端的担忧
His unfounded fears about public speaking prevented him from accepting the award.
他对公开演讲的无端担忧使他无法接受这个奖项。
Use unfounded naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
un（不）+ founded（建立）→ 没建立在事实上，即“无根据的、没理由的”。
语域：formal 常见场景：新闻报道、正式声明、法律文书 unfounded 多用于正式或书面语，常见于新闻报道、法律或公开声明等场合，表示“没有事实根据的”。日常口语中较少使用，更常说 groundless。
这些词都以 -ounded 结尾。founded、rounded、sounded、astounded、confounded 的重读元音都是 /aʊ/，与 unfounded /ənˈfaʊndɪd/ 的 /faʊndɪd/ 押韵；wounded 虽然拼写相同，但读作 /ˈwuːndɪd/，与它们不押韵。
Dictionary facts from ECDICT, WIKTIONARY.