well-founded

Thousands of mourners turned out for his funeral in Moscow in March 2024 despite well-founded fears of a police crackdown.

And those concerns turned out to be all too well-founded.

BBC News spoke to three experts to find out if environmental, financial and medical concerns about air conditioning are well-founded.

His announcement on social media was accompanied by a letter from the UK Home Office which read: "We accept you have a well-founded fear of persecution and therefore cannot return to your country."

The staff said they had submitted the complaint anonymously "due to a well-founded fear of retaliation".