fá​lì

incapable

乏力 fá​lì
incapable adjective
lacking the power, influence, or ability to perform a task or achieve a result

The implementation of this policy was weak and failed to achieve the desired results.

weak adjective
lacking in physical strength or energy; feeble

Recently he has felt weak in his limbs and low in energy.

Frequency

Movie subtitles
0.240 per million appears in 0% of films
Written text
6.39 per million

Sources

Definitions
CC-CEDICT