Indeed I think it is positively dangerous to hold negative feelings in.
This can be positively dangerous, if only because such practitioners may not recognise when a person is seriously ill.
Not only does Gulliver appear crude, he's positively dangerous, a walking natural disaster!
This man is not merely technically ignorant, he is positively dangerous.
Relying on tablets for the relief of pain without trying to discover its cause can be positively dangerous.
It would be positively dangerous to the ship.
But the unpleasant reality is that some holiday destinations are positively dangerous.
Such a view is not only a political cop-out, it is positively dangerous.
If the walk had looked pre- carious, this was positively dangerous!
It is either tautologous, positively dangerous, unoriginal or highly ambiguous.