rabid /ˈɹæbɪd/adjective 4noun 2forms 3 adjective4 •Affected with rabies. •(figurative) Very extreme, unreasonable, or fanatical in opinion; excessively zealous.rabid Green Bay Packers fans •Of or pertaining to rabies, or hydrophobia. •Furious; raging; extremely violent.He met her struggles with rabid force, shaking her and growling. — 1990 noun2 •A human or animal infected with rabies. •Someone who is fanatical in opinion. formsrabids · rabider · rabidest