Disagreeable or unpleasant.
Worthy of, or causing, abhorrence, as a thing of evil omen; odious in the utmost degree; very hateful; detestable; loathsome; execrable.
Very bad or inferior.
Objectionable, unpleasant (of a thing); repellent, offensive.
Spiteful, unkind.
Grave or dangerous (of an accident, illness etc.).
Contemptible, unpleasant (of a person).
Awkward, difficult to navigate; dangerous.
Dirty, filthy.
Indecent or offensive; obscene, lewd.
Formidable, terrific; wicked.
Sexual intercourse.
Something nasty.
A video nasty.