noun
mythomania; pathological lying
A clinical term for compulsive lying or a strong propensity to lie, often used in psychiatric contexts. The cross-referenced term 虚言癖 is more common in everyday language.
See also: 虚言癖
虚言症の患者は、自分でも気づかないうちに嘘をついてしまうことがある。
Patients with mythomania may tell lies without even realizing it themselves.
彼の話は
His stories were so exaggerated that people suspected he had mythomania.
Compound of 虚言 (kyogen, 'falsehood, lie') and 症 (shō, 'symptom, condition'). The term is a direct translation of the Western medical concept of mythomania.