Dirty

1. Law - ethics.

Illegal, unethical or dishonest.

Lacking in integrity.

2. Price quotation - bonds.

Including accrued interest, the price being quoted as a dirty price (rather than a clean price).

3. Energy systems - manufacturing - sustainability.

Relatively more polluting, and less sustainable.

4. Foreign exchange rates - exchange rate systems.

Incorporating some government intervention.

For example, a dirty float (contrasted with a free float).

See also