ill-informed

American  

[il-in-fawrmd] / ˈɪl ɪnˈfɔrmd /

adjective

1. 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

For instance, just a year after Guardiola's arrival at Etihad Stadium, La Liga president Javier Tebas accused City of "financial doping" in comments the club described as "ill-informed and in parts pure fiction".

From BBC • May 19, 2026

Many of them are doing so out of a well-meaning but ill-informed abundance of caution.

From Salon • May 7, 2026

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

Roblox told the BBC it strongly disagreed with the allegations made on Tuesday, saying they were "based on ill-informed and outdated information".

From BBC • Sep. 9, 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