trustiest
trus-ti-est
adjective
The superlative form of 'trusty', meaning most reliable, dependable, or faithful.
"He chose his trustiest companion for the journey."
Thesaurus
Synonyms: creditworthy, reliable, trusty, true, sure, trusted, authentic, fiducial, honest, dependable, responsible, trustworthy
Antonyms: untrustworthy, untrusty