True; trustworthy; faithful; that may be implicitly confided in: applied to persons: as, a trusty servant.
Not liable to fail; that may be relied upon, as in an emergency; strong; firm: applied to things: as, a trusty sword.
Trusting; trustful.
Involving trust and responsibility.
noun.
A trusty person; specifically, a well-behaved and trustworthy convict to whom special privileges are granted.