well-informed

American  

[wel-in-fawrmd] / ˈwɛl ɪnˈfɔrmd /

adjective

1. having extensive knowledge, as in one particular subject or in a variety of subjects.

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well-informed British  

adjective

1. having knowledge about a great variety of subjects

   he seems to be a well-informed person

2. possessing reliable information on a particular subject

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Etymology

Origin of well-informed

late Middle English word dating back to 1400–50

Example Sentences

So do well-informed experts and, more troubling, insiders with the ability to manipulate the betting markets that are proliferating so rapidly.

From Los Angeles Times • Mar. 12, 2026

For example, a Substack column by Todd Legum, Rebecca Crosby and Noel Sims contrasts the terrible death toll of the war with the casino behavior of some … er … remarkably well-informed people.

From MarketWatch • Mar. 3, 2026

Because of their business and interests in worldly affairs, Mr. McGinnis claims, the rich tend to be well-informed on policy matters.

From The Wall Street Journal • Feb. 17, 2026

For a democracy to exist, as those who founded this nation taught us, we need a well-informed electorate.

From Salon • Feb. 6, 2026

Although he had been confined by banning orders for more than a year, the chief was well-informed about ANC activities.

From "Long Walk to Freedom" by Nelson Mandela

Related Words

• educated
• intelligent
• knowledgeable