phobiac adjective 1noun 1forms 1 adjective1 •Relating to a phobia; phobic.With phobiac writer's cramp, they will re-educate to write with blackboard exercises[.] — 1926 noun1 •A person with a phobia.Defective types of psychoses are the most interesting kinds, like the maniacs, the melancholiacs, the phobiacs, the paranoiacs, the neurasthenics, the hysterical, etc. — 1913 formsphobiacs