biàn​běn​jiā​lì

to intensify

变本加厉 變本加厲 biàn​běn​jiā​lì
to intensify
to become more intense or severe; to change for the worse, usually used in a negative sense to describe a worsening of flaws or bad behavior

Frequency

Movie subtitles
0.660 per million appears in 0% of films
Written text
1.34 per million

Sources