ill-informed

ill-informed (comparative more ill-informed, superlative most ill-informed)

1. Poorly informed; ignorant.

   the ill-informed decision to close the hospital

   • 1962 August, “Let's have plain speaking”, in Modern Railways, page 73:

     The Southern Region takes, in the main, a candid line with its public. [...] An ill-informed attempt to blackguard the railway publicly is likely to see the complainant put politely—but very firmly—in his place.

   • 2019 October 23, Pip Dunn, “The next king of Scotland”, in Rail, page 50:

     Despite their age, and a spot of ill-informed mainstream media criticism, there is plenty of life left in the HSTs.

• “ill-informed”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.