Undependable

Tom is undependable.

You're undependable.

Tom is very undependable.

Tom is undependable, I think.

Tom says I'm undependable.

Tom told me that you're undependable.

I heard that you're undependable.

Tom may be undependable.

Tom might be undependable.

I think Tom is undependable.

‘These vehicles tended to be old and undependable, but some people had them.’