well-founded

[wel-foun-did] /ˈwɛlˈfaʊn dɪd/

adjective

having a foundation in fact; based on good reasons, information, etc.:

well-founded suspicions.

Origin

1325-75; Middle English

Examples from the web for well-founded

Idle rumors were also added to well-founded apprehensions.
But the discrepancy is a reminder that family stories-even well-founded ones-are closer to mythology than to history.
The legal standard is the same standard used to establish a well-founded fear of persecution in an asylum case.
She contends that she demonstrated past persecution and showed that she had a well-founded fear of future persecution.
Our pride in this herd is well-founded, because it is a symbol of the success of our wildlife management and conservation efforts.
Some of the industry's optimism appears to be well-founded.
But even where intelligence is well-founded, few are charged.
Those concerns were well-founded: the initiative's wording was vague and its actual, real-world effects uncertain.

British Dictionary definitions for well-founded

adjective (well founded when postpositive)

having good grounds: well-founded rumours