Definition of Immunities

Having an immunity does what one would expect. You can not be harmed by that specific thing.

For example, having an immunity to traps would cause you to not be effected by traps. Immunity to poison, prevents you from dying in 100 count from poison.

List of immunities (for standard classes):

Control Death (It means death magic) Flame Poison Subdual Traps

Glossary definition of immunity