Benign |

Benign: an abnormal or foreign condition that is present, but not harmful or threatening. A foreign agents can be a virus, bacteria, yeast or fungus, tumor, growth or cyst.

The term, benign, however, takes on a totally different light when understood in terms of pleo-morphism (see Glossary in link below) where the foreign agent “morphs,” turns virulent and attacks the host.

The opposite of benign is virulent, meaning disease related.