乗客はほとんどいなかった

there were hardly any passengers

→ 乗客
phrase Rare #35,895
there were hardly any passengers ほとんど〜いない means “there are hardly any …” or “almost no ….”
JA: そのバスには乗客はほとんどいなかった。
EN: There were hardly any passengers on that bus.

その事故で怪我をした乗客はほとんどいなかった

Few passengers were injured in the accident.

無事だった乗客はほとんどいなかった

There were hardly any passengers who were unharmed.

不幸にもその大惨事生き残った乗客はほとんどいなかった

Unfortunately, few passengers survived the disaster.