vô kỷ luật 
undisciplined [ vô ] : (1) in-, im-, (negative prefix); (2) in, at, on; (3) to go into, enter [= vào]
[ kỷ ] : (1) order, discipline; (2) small table, bench; (3) self; (4) to write, record; (5) cycle, era; (6) 6th cycle of the twelve years of the Chinese zodiac
[ luật ] : law, regulation, rule
Most Common Compounds Set 1:
Most Common Compounds Set 2 :