like: lạc hậu
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
lạc hậu * ☊ 
behind (the times) * ☊
[ lạc ] : peanuts; to be lost, go astray, lose one’s way
[ hậu ] : after, behind, back, rear
OXF3000: 
lạc hậu 
backward