well founded
adjective/ˌwel ˈfaʊndɪd/
/ˌwel ˈfaʊndɪd/
(also less frequent well grounded)
- having good reasons or evidence to cause or support it
理由充足的；有根据的；有事实依据的 - well-founded suspicions
有根据的怀疑 - His fear turned out to be well founded.
他的恐惧证明是有道理的。 - Our suspicions were well founded.
我们的怀疑是有根据的。
- well-founded suspicions