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well-founded

[wel-foun-did]
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adjective
  1. having a foundation in fact; based on good reasons, information, etc.: well-founded suspicions.
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Origin of well-founded

Middle English word dating back to 1325–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

factualsolidprovensubstantiated

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British Dictionary definitions for well-founded

well-founded

adjective (well founded when postpositive)
  1. having good groundswell-founded rumours
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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