落らく伍ご

noun, noun or participle which takes 'suru'

falling behind; being left behind; dropping out

Figurative use: failing to keep up with a group, trend, or competition; often implies being left out or dropping out from a collective effort.

• 彼かれは競きょう争そうに落らく伍ごしてしまった。

  He fell behind in the competition.

• 時じ代だいの変へん化かに落らく伍ごしないように勉べん強きょうを続つづけている。

  I keep studying so as not to be left behind by the changing times.

noun, noun or participle which takes 'suru'

falling out of line; straggling from the ranks

Literal military or marching use: dropping out of formation or falling behind the ranks. Less common in everyday speech.

• 行こう軍ぐん中ちゅうに落らく伍ごする兵へい士しが出でた。

  Some soldiers fell out of line during the march.