Definition of well founded in US English:

well founded

adjective

  • (especially of a suspicion or belief) based on good evidence or reasons.

    ‘their apprehensions were well founded’
    • ‘But that would only reinforce well-founded opinions that I long ago used up any ideas of my own.’
    • ‘There is plenty of evidence that such suspicions are at least partially well-founded.’
    • ‘I am only saying that the society where they live is pervaded by a deep sense of mutual distrust and suspicion, which are well-founded.’
    • ‘And so he realized their skepticism was only natural, their suspicions well-founded.’
    • ‘There are very real and probably well-founded reasons for not being so easily moved.’
    • ‘In the end, his fears proved well-founded, although trouble would next emerge from a different quarter.’
    • ‘Dubai's modern reputation as a city in which to shop in has a well-founded base since the early days of trade.’
    • ‘If it is a well-founded objection, then that will bring the proceedings to an end immediately.’
    • ‘Accordingly, it does not yield knowledge, if knowledge involves understanding and not just well-founded conviction.’
    • ‘The doctor in charge of the case duly informed the social worker and the police of her well-founded suspicions.’
    • ‘I have no doubt that the Chief Constable's opinion is well-founded.’
    • ‘Visits to public places revealed that grievances of the physically disabled people are legitimate and well-founded.’
    • ‘A requirement that the defendant's belief be well-founded is ambiguous.’
    • ‘What do you mean by a well-founded suspicion if you do not simply mean a reasonable suspicion?’
    • ‘Either the judge read this carefully and thinks the order is well-founded, in which case he isn't a very smart judge.’
    • ‘Each found the other's intelligence and well-founded opinions refreshing and they began to talk.’
    justifiable, justified, warranted, legitimate, defensible, supportable, sustainable, tenable, well grounded, valid, admissible, allowable, understandable, excusable, warrantable, acceptable, reasonable, logical, sensible, sound, just, bona fide, genuine, plausible, credible, believable
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Pronunciation

well founded