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ill-informed

American

[il-in-fawrmd] / ˈɪl ɪnˈfɔrmd /

adjective

lacking adequate or proper knowledge or information, as in one particular subject or in a variety of subjects.

The public is ill-informed of the danger.

Etymology

Origin of ill-informed

First recorded in 1815–25

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.

A dearth of serious reporting contributed to the public being ill-informed.

From Salon • Dec. 19, 2025

Don’t underestimate either how ill-informed he might choose to be about what’s really happening in Ukraine.

From The Wall Street Journal • Nov. 21, 2025

“We are deeply disappointed by this ill-informed decision, which immediately affects critical programs supported by these funds,” Rebecca Wendt, the California deputy state librarian, said in a statement.

From Los Angeles Times • Apr. 4, 2025

Senior investigating officer Det Supt Paul Hughes said much criticism of Letby's convictions was "ill-informed" and based on a "very partial knowledge of the facts".

From BBC • Apr. 2, 2025

No competent astronomer defended the traditional Ptolemaic system once they had heard that Venus had a full set of phases; you had to be an ill-informed philosopher to do so.

From "The Invention of Science" by David Wootton

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023