(Informal) Uncertain; dubious.

Deliberately and abominably disloyal or likely to betray trust or confidence; SYN. traitorous, unfaithful.

1. Liable to be erroneous or misleading; SYN. unreliable.
2. Not to be trusted; SYN. unreliable.

1. Lacking a sense of responsibility.
2. Not worthy of reliance or trust; SYN. undependable.

1. Not in good condition; damaged or decayed
2. Not sound financially
3. Of e.g. advice.

Not worthy of trust or belief; SYN. untrusty.

In a discontented manner, in a disloyal manner

In an unreliable manner, untrustworthily

In an unsound manner; unsteadily; in an unhealthy manner; faultily