noun the action of opposing something that you disapprove or disagree with
Synonymsopposition
noun a material's opposition to the flow of electric current; measured in ohms
noun (medicine) the condition in which an organism can resist disease
Synonymsimmunity
noun a secret group organized to overthrow a government or occupation force
Synonymsunderground
noun an electrical device that resists the flow of electrical current
Synonymsresistor
Source: WordNet 3.1, Princeton University