A person who can't be trusted is called untrustworthy or unreliable.
A useless, unreliable person is a:couch potatoa bumsomeone that is just taking up space
a deceitful and unreliable person
British slang. Can mean an unreliable, lazy person. Flaky means unreliable, derelict means abandoned.
Your an unrelieable, mean person.
A person who doesn't keep their promises can be called unreliable, untrustworthy, or dishonest.
You could refer to them as untrustworthy, unreliable, deceitful, or dishonest.
only one character
Not necessarily - there are a lot of "unreliable" people that would be the most loyal individual. Don't base one trait on their whole demeanor.
Unreliable is the correct spelling.
the fact that a random person can answer these questions makes this site completely unreliable!
Unreliable means not guaranteed. In term of data communication unreliable stands when the delivery of data is unacknowledged.