Superlative form of trusty: most trusty.(adjective)
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Use "trustiest" in a sentence
"In 1894, Mark Twain wrote that "a public library is the most enduring of memorials: the trustiest monument of an event or a name or an affection; for it, and it only, is respected by wars and revolutions, and survives them"."
"A local road-construction worker, 50-year-old Jerry Leonard, has become the Paul team's trustiest phone-banker."
"In an 1894 letter to the Millicent Rogers Library, Mark Twain wrote, "A public library is the most enduring of memorials; the trustiest monument of an event or a name or an affection; for it, and it only, is respected by wars and revolutions, and survives them.""