noun
traumatic experience
Refers to a psychologically or emotionally distressing event that leaves lasting impact. Often used in clinical or counseling contexts.
彼は幼少期の外傷的体験についてカウンセラーに話した。
He talked to the counselor about a traumatic experience from his childhood.
Compound of 外傷 (がいしょう, 'external wound') + 的 (てき, '-like') + 体験 (たいけん, 'experience'), literally 'external-wound-like experience', used figuratively for psychological trauma.