Dirty, filthy.
Spiteful, unkind.
Grave or dangerous (of an accident, illness etc.).
Contemptible, unpleasant (of a person).
Awkward, difficult to navigate; dangerous.
Indecent or offensive; obscene, lewd.
Formidable, terrific; wicked.
Objectionable, unpleasant (of a thing); repellent, offensive.
Sexual intercourse.
Something nasty.
A video nasty.
Having a bad smell.
Having signs that suggest a design problem; having a code smell.
Having a quality that arouses suspicion.
a Short Magazine Lee Enfield rifle or one of its derivatives.