unreliable

word

Definition

Someone or something that is unreliable cannot be trusted to do what is expected or to work properly.

Usage & Nuances

'Unreliable' is mildly negative and used for people, technology, information, or even weather. Common collocations: 'unreliable source', 'unreliable car', 'unreliable friend'. Not as strong as 'untrustworthy' (which implies dishonesty).

Example Sentences

My old phone is unreliable and often stops working.

basic

You cannot trust an unreliable person with important tasks.

basic

That news website is known for being unreliable.

natural

The train schedule is unreliable during storms.

basic

His excuses sound pretty unreliable to me.

natural

Sorry, but the Wi-Fi here is totally unreliable.

natural