Contemptible, unpleasant (of a person).
Spiteful, unkind.
Grave or dangerous (of an accident, illness etc.).
Awkward, difficult to navigate; dangerous.
Dirty, filthy.
Indecent or offensive; obscene, lewd.
Formidable, terrific; wicked.
Objectionable, unpleasant (of a thing); repellent, offensive.
Sexual intercourse.
Something nasty.
A video nasty.
Cruel, mean or immoral.
Bad or terrible.
Of stone or rock, crumbling or friable; in a loose or disintegrated state.
very drunk, intoxicated
Of perishable items, overridden with bacteria and other infectious agents.
In a state of decay.
To an extreme degree.