ichidan verb, intransitive verb
lag behind; start slowly; fall behind
Used when someone or something is slower to act or progress compared to others, often in competitive or timely contexts.
彼は準備に手間取って、みんなより立ち遅れた。
He took too long to prepare and lagged behind everyone else.
この分野の研究は海外に比べて立ち遅れている。
Research in this field is lagging behind compared to overseas.