English Thesaurus

Synonyms of 'well-founded'

(adjective) 
Definition
having a sound basis in fact
We must respond to well-founded criticism with a willingness to change.
Synonyms
justifiable
the strong and justifiable desire for independence
,
justified
In my opinion, the decision was wholly justified.
,
reasonable
a perfectly reasonable decision
,
valid
Both sides have made valid points.
,
warranted
,
legitimate
That's a perfectly legitimate fear.
,
credible
This claim seems perfectly credible to me.
,
plausible
That explanation seems entirely plausible to me.
,
defensible
Her reasons for action are morally defensible.
,
well grounded
,
supportable

Additional synonyms

in the sense of credible
Definition
capable of being believed
This claim seems perfectly credible to me.
in the sense of defensible
Definition
capable of being defended because believed to be right
Her reasons for action are morally defensible.
in the sense of justified
In my opinion, the decision was wholly justified.

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Source

Thesaurus for well-founded from the Collins English Thesaurus
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