trusty
[adjective]
Synonyms: faithful, dependable, reliable, solid, staunch, steady, strong, trustworthy

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Antonyms: untrusty
Contrasted words: capricious
Related Words: predictable, stable, firm, sound, responsible, straight

[TahlilGaran] English Synonym Dictionary ▲

I. trust‧y¹ /ˈtrʌsti/ adjective [only before noun]
[Word Family: adjective: trusting, trustworthy ≠ untrustworthy, trusty, distrustful, mistrustful; noun: trust ≠ distrust ≠ mistrust, trustee, trusteeship, trustworthiness; verb: trust ≠ distrust ≠ mistrust]
old-fashioned a trusty weapon, vehicle, animal etc is one that you have had for a long time and can depend on – often used humorously Synonym : reliable:
He had his trusty old penknife with him.

[TahlilGaran] Dictionary of Contemporary English ▲

II. trusty² noun (plural trusties) [countable] British English
a prisoner who is given special jobs or rights, because they behave in a way that can be trusted

[TahlilGaran] Dictionary of Contemporary English ▲