Translation guide
A person who is present at an event or incident but does not take part. In Japanese, the most natural translation depends on context: whether the person is simply a passerby, a witness, or someone uninvolved in a situation.
Referring to someone who happens to be near an event or incident, often without direct involvement.
Literally 'passerby'. Used for someone walking by, especially in street contexts.
A bystander witnessed the accident.
Literally 'bystander' or 'onlooker'. Often used in discussions of the bystander effect or when emphasizing passive observation.
We discussed the bystander effect.
Means 'people who happened to be there'. Natural for describing bystanders at an incident.
A bystander called for help.
Someone who sees an event, especially a crime or accident, and may provide testimony.
Someone who is present but not taking sides or participating in a dispute or fight.
The English word 'bystander' covers several Japanese words. Using 傍観者 in casual conversation may sound overly academic. Choose based on whether the person is a passerby, witness, or uninvolved party.
Testimony from a bystander is important.
A bystander got caught up in it.