Dictionary.com
Thesaurus.com
Synonyms

well-grounded

American  
[wel-groun-did] / ˈwɛlˈgraʊn dɪd /

adjective

  1. based on good reasons; well-founded.

    His opposition to the scheme is well-grounded.

  2. well or thoroughly instructed in the basic principles of a subject.

    She is well-grounded in mathematics.


well-grounded British  

adjective

  1. well instructed in the basic elements of a subject

  2. another term for well-founded

"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-grounded

Middle English word dating back to 1325–75

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.

The table below, which has been updated over the years by a team of Deutsche Bank strategists, shows that this instinct is well-grounded in history.

From MarketWatch • Mar. 3, 2026

At a separate news conference the same day, Bovino rejected the criticism about federal agents, saying, “Everything we do every day is legal, ethical, moral, well-grounded in law.”

From The Wall Street Journal • Jan. 25, 2026

"A well-grounded suspicion does warrant more follow-ups but also might not hit the high threshold for overturning the result."

From BBC • Apr. 10, 2024

Here was novel content written in academic language, with well-grounded references cited in the right places and in relation to the right context.

From Scientific American • Jun. 30, 2022

The Count clapped loud applause to this well-grounded scheme of his wise Squire; it was as if the mettled Kurt had read it in his master's eyes.

From Translations from the German (Vol 3 of 3) Tales by Musaeus, Tieck, Richter by Carlyle, Thomas