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Synonyms

ill-defined

American  
[il-di-fahynd] / ˈɪl dɪˈfaɪnd /

adjective

  1. badly or inadequately defined; vague.

    He confuses the reader with ill-defined terms and concepts.


ill-defined British  

adjective

  1. imperfectly defined; having no clear outline

"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

Etymology

Origin of ill-defined

First recorded in 1865–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The threat of a looming, if ill-defined, stand-off with Russia has become part of France's national discourse.

From BBC

Both Mitchell and Barger opposed Measure G, arguing it had been put together too hastily and gave too much power to an ill-defined county executive.

From Los Angeles Times

In the filing, Keenan appeared to question the government’s evidence relating to a reported “blunt head injury,” calling it “vague and ill-defined even at trial.”

From Los Angeles Times

Contract marriages fall into the broader and ill-defined category of unregistered religious unions, which are widespread in many Muslim-majority nations and pose a conundrum to governments — especially when it comes to protecting young girls.

From Los Angeles Times

Her then-presidential candidacy quickly fell flat as she failed to distinguish herself in a crowded Democratic field and her campaign was hobbled by staff infighting and ill-defined messaging.

From Los Angeles Times