lù lù wú wéi
unaccomplished
mediocre; feckless
碌
lù
(bound form used in 忙碌[mang2 lu4], 勞碌|劳碌[lao2 lu4], 庸碌[yong1 lu4] etc)
无
wú
not to have
为
wéi
variant of 為|为[wei2]