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Synonyms

well-informed

American  
[wel-in-fawrmd] / ˈwɛl ɪnˈfɔrmd /

adjective

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

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

"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 well-informed

late Middle English word dating back to 1400–50

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.

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

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

Yet a self-selecting survey of around 1,600 women, published in October by University College London, found that more than 75% felt that they are not well-informed enough about menopause.

From BBC • Jan. 22, 2026

The identity of the oracular, or exceedingly well-informed, account holder is not known.

From MarketWatch • Jan. 5, 2026

On the other hand, in the gyptians the Oakley Street boats had well-informed and greatly experienced guides to all the waterways.

From "The Book of Dust: La Belle Sauvage" by Philip Pullman

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.