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View synonyms for

ill-founded

[ il-foun-did ]

adjective

  1. based on weak evidence, illogical reasoning, or the like:

    an ill-founded theory.



ill-founded

adjective

  1. not founded on true or reliable premises; unsubstantiated

    an ill-founded rumour

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of ill-founded1

First recorded in 1665–75
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Example Sentences

Examples have not been reviewed.

"I have done nothing wrong or unlawful and the concerns raised by the Home Office against me are ill-founded."

From

"I have done nothing wrong or unlawful and the concerns raised by the Home Office against me are ill-founded," he said in a statement issued by his lawyers.

From

Mr Swann told the UK Covid-19 Inquiry, it was "ill-founded" to suggest there was a "blanket response" as a policy in Northern Ireland.

From

She did not make any of these dangerous and ill-founded accusations in her relatively short speech Monday night.

From

In fact, top authorities barraging lawmakers and the public with a panicky, ill-founded crusade are distorting vital information and ignoring the real issues underlying teens’ mental health and how they use social media.

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ill-formedill-gotten