Tending to hurt or damage; hurtful, harmful, detrimental, deleterious.

That mars someone or something.

= inimical, adj.

That blemishes.

Tending to do disservice; unhelpful, hurtful, detrimental.

Adverse or injurious in tendency or influence; harmful, hurtful. Const. to.

= detrimental, adj.

Causing loss or damage; harmful, injurious, hurtful.

= inimical, adj.

Adverse, harmful, inimical.

= inimical, adj.

= detrimental, adj.

That makes blotches.