sink without (a) trace idiom informal
彻底被人遗忘，销声匿迹
to be forgotten about completely, or to not attract any attention or interest
Since his last book five years ago, he seems to have sunk without trace. 自从5年前出了最后一本书，他好像就销声匿迹，踪影全无。
Her second symphony sank without a trace. 她的第二部交响乐无人问津。