Synonyms of fall behind in English:

fall behind


See definition of fall behind

phrase

1‘she walked so fast that the others soon fell behind’

SYNONYMS
lag, lag behind, trail, trail behind, be left behind, fall back, drop back, not keep up, lose one's place, not keep pace, bring up the rear
straggle, dally, dawdle, hang back, drag one's feet, take one's time
ANTONYMS

overtake

2‘customers fell behind on their payments’

SYNONYMS
get into debt, get into arrears, default, be in the red, be late, be overdue
not keep up with
ANTONYMS

be up to date