Refers to a person's conduct or behavior, often in a moral or disciplinary context. Common in phrases like 素行が悪い (bad behavior) or 素行調査 (background check).
He has bad behavior and is often scolded by the teacher.
A background check may be conducted before hiring.
conduct disorder
bad behavior; misconduct; delinquency
background check; probity investigation
conduct disorder; CD
dissolute; loose conduct
Composed of 素 (element, nature) and 行 (action, conduct). The exact historical derivation is uncertain, but the combination conveys one's inherent conduct or behavior.