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.

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well-grounded British  

adjective

1. well instructed in the basic elements of a subject

2. another term for well-founded

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Etymology

Origin of well-grounded

Middle English word dating back to 1325–75

Example Sentences

David Davis, who worked closely with Mr Barnier for several years as the UK’s Brexit Secretary, told the BBC he was “a really solid Frenchman” who was “well-grounded in the real France”.

From BBC

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

From BBC

Despite these far-fetched ambitions, Rothblatt has funded a wealth of well-grounded research for decades, and her company United Therapeutics has propelled much of the recent progress in xenotransplantation.

From Scientific American

“Soon, the Sudanese state with its well-grounded institutions will rise as victorious, and attempts to hijack our country will be aborted forever,” the Sudanese military said on social media Saturdya.

From Seattle Times

“I don’t think there’s any incentive to move toward well-grounded reporting or to move in the direction of news and information instead of commenting,” Hemmer said.

From Seattle Times