trusty

UK: /ˈtrʌsti/ US: /ˈtrʌsti/ ,(trus′tē)

Inflections of 'trusty' (adj):

trustier

adj comparative

trustiest

adj superlative

Inflections of 'trusty' (n): npl: trusties

WordReference Random House Learner's Dictionary of American English © 2025

trust•y /ˈtrʌsti/   adj., -i•er, -i•est, n., pl. -trust•ies. 
adj. [before a noun]

1. able to be trusted;
   trustworthy:
   my trusty friend.

n. [countable]

2. one trusted, esp. a convict considered trustworthy and granted special privileges.

WordReference Random House Unabridged Dictionary of American English © 2025

trust•y  (trus′tē), adj., trust•i•er, trust•i•est, n., pl. trust•ies. 
adj. 

1. able to be trusted or relied on;
   trustworthy;
   reliable.
2. [Archaic.] trustful.

n. 

3. a person or thing that is trusted.
4. a well-behaved and trustworthy convict to whom special privileges are granted.

• 1175–1225; Middle English; see trust, -y¹

trust′i•ly, adv. 
trust′i•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

trusty / ˈtrʌstɪ/ adjective (trustier, trustiest)

1. faithful or reliable

noun (trusties)

1. someone who is trusted, esp a convict to whom special privileges are granted

ˈtrustily adverb

ˈtrustiness noun