Noviro
不怠
Simplified 不怠
Traditional 不怠
Pinyin bù dài
Definition unremitting in one's efforts
他一直不怠努力
Tā yìzhí bù dài nǔlì
He keeps working unremittingly
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怠
dài
idle; lazy; negligent; careless
不
bù
no; not so; (bound form) not; un-
HSK1
不过
bù guò
only; merely; no more than; but; however; anyway (to get back to a previous topic); cannot be more (after adjectival)
HSK2
不要
bù yào
don't!; must not
HSK2
不错
bù cuò
correct; right; not bad; pretty good
HSK2
不行
bù xíng
won't do; be out of the question; be no good; not work; not be capable
HSK2
不同
bù tóng
different; distinct; not the same; not alike
HSK2
不管
bù guǎn
not to be concerned; regardless of; no matter
HSK4