fǎn​fǎn​fù​fù

unreliable

反反复复 反反覆覆 fǎn​fǎn​fù​fù
unreliable
fickle; changeable; to be indecisive or constantly change one's mind
反反复复 反反復復 fǎn​fǎn​fù​fù
variant 反反覆覆
repeatedly
happening over and over; again and again; time and time again

Frequency

Movie subtitles
0.920 per million appears in 1% of films
Written text
1.64 per million

Sources