jaundiced

1. Affected with jaundice.
2. Yellow or yellowish.
3. Affected by or exhibiting envy, prejudice, or hostility.

Definition: tainted, prejudiced
Antonyms: clean, fresh, optimistic, unbiased, unprejudiced

The adjective has 3 meanings:

Meaning #1: (archaic) showing or experiencing a state of disordered feeling or distorted judgment as through bitterness or melancholy
  Synonym: yellow

Meaning #2: affected by jaundice which causes yellowing of skin etc
  Synonym: yellow

Meaning #3: showing or affected by prejudice or envy or distaste