His loyalty can rightfully be described as unreliable.
It's not in my blood to be unreliable.
Catherine is very "unreliable", she is never there when I need her help.
The boat's hull was unreliable (I couldn't rely on it) so it sunk.
Jo did not trust her friend because she heard rumours about her being unreliable.
Your an unrelieable, mean person.
The painter we hired last summer was very unreliable and never finished the job.
The polygraph test is not "proof-positive". The polygraph test is not completely unreliable.
The quote "Stupid, unreliable vampire." is on page 409 in the book Twilight by Stephenie Meyer.
Here is the sentence, "What the heck does neonatal mean, Mother?" said the child. "I not really sure, darling, try searching it on the internet. Make sure to remember not to search it on Answers.com. They have people on there that post weird unreliable stuff." says Mother.
The air will dry it out and make it unreliable. Toss it out.
Unreliable is the correct spelling.
Example sentence - David bought the car on an impulse and had to invest additional monies in it when it proved unreliable.