Intermediate (B1)
IPA: /ˈtrʌsti/
KK: /ˈtrʌsti/
Definition
Deserving of trust; reliable and dependable.
Example
She is my trusty friend who always supports me.
Conversation

I really need to find a trusty tool for my garden.

You should try the one I recommended, it's great!

Sounds good! I want something that's really trusty for the long term.

Absolutely, having reliable tools makes gardening so much easier.
Synonyms & Antonyms
Synonyms
reliable
faithful
dependable
Antonyms
unreliable
treacherous
deceitful
Definition
A person who is trusted and considered reliable, often given special privileges or responsibilities.
Example
He was known as a trusty among the inmates, often helping them with their needs.
Conversation

I was thinking about how you always seem to have a trusty friend by your side.

Yeah, it’s nice to have someone you can rely on, isn't it?

For sure! Everyone needs a trusty companion in tough times.
Root Explanation
Trusty → It is formed from "trust" (from Old Norse "traust", meaning confidence or reliance) and the suffix "-y" (meaning characterized by or having the quality of). The word "trusty" means characterized by trust or reliable.
Memory Tip
Think of someone who is 'reliable' or 'confident' — that's what 'trusty' means, as it describes someone you can trust.
Visually Confused Words
rusty
untrusty
truthy
trouty
thrust
rustly
crusty
rust