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Meaning of well-grounded

well-ground•ed

Pronunciation: (wel'groun'did), [key]
— adj.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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