The phrase "deeply trusted" is correct and usable in written English.
You can use it to refer to someone or something that has inspired a great deal of trust. For example, "He was a deeply trusted leader in the community."
He was a deeply trusted, highly respected colleague, mentor and close friend to many.
He is so deeply trusted that when avian flu struck France, his poultry sales went up, not down.
As its title suggests, the book is about Mr. Gotti's goombata, his crew, friends he deeply trusted.
He has been reëlected three times and has become the deeply trusted protector of all the most established interests in Nevada.
Lowe told the House of Representatives economics committee that he wanted banks to regain their reputation for being deeply trusted organisations.
James Andrews is perhaps the most renowned doctor in baseball, deeply trusted by players and their agents for his conservative methods.
Barbara Kuklinski, his widow, who suffered her own abuse at her husband's hands, said he came to deeply trust Mr. Carlo, as did she.
Andrew Edis QC, for the crown, said the revelation was not designed to invade their privacy but to help the prosecution demonstrate that they had a deeply trusting relationship during their period working together at the News of the World.
Risk that fuels achievement can only really be encouraged in cultures that are deeply trusting and deeply grounded in win/win thinking.
But Schaub said this requires us to deeply trust the companies we buy the devices from.
I deeply trust Christine, and our relationship is built off mutual admiration.
