self-destruction; self-sabotage
Refers to actions or patterns that harm oneself, one's own position, or one's own work, often psychologically or socially.
His behavior is self-destructive.
Excessive drinking leads to self-destruction.
自滅 emphasizes ruin or downfall caused by one's own actions, often with a stronger sense of finality, while 自己破壊 can refer to ongoing self-sabotaging behavior.
自傷 specifically refers to physical self-harm, whereas 自己破壊 is broader and includes psychological, social, or career-related self-damage.
Compound of 自己 (self) and 破壊 (destruction). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.