加害者|かがいしゃkagaisha

1. nounperpetrator; wrong-doer; aggressor; assailant; offender; at-fault party (e.g. in an accident)

• Related襲撃者しゅうげきしゃWrittenWritten/formal prose. Someone who suddenly attacks others; 「加害者」 is broader, covering any party that causes harm or loss, as in traffic accidents.
• Related攻撃者こうげきしゃNeutralNeutral. Someone who commits violence or an attack, including cyber attackers; 「加害者」 is the party that caused the harm or damage, the usual framing in legal contexts.
• Antonym被害者ひがいしゃNeutralNeutral. The victim: the party that suffers harm, the opposite of 「加害者」 — one is harmed, the other causes harm.

Use 「加害者」 for the party that causes harm or loss to others, as in 「事故の加害者」 or 「いじめの加害者」. Use 「襲撃者」 for someone who suddenly attacks and 「攻撃者」 for an attacker, including cyber attackers; 「被害者」 is the opposite, the victim.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 他人たにんに危害きがいや損害そんがいを与あたえた者もの。