किसी की तुलना में अधिक बुरा या ज़्यादा ख़राब।

दिन-ब-दिन उसका स्वभाव बदतर होता जा रहा है।
बदतर, बद्तर

(comparative of `bad') inferior to another in quality or condition or desirability.

This road is worse than the first one we took.
The road is in worse shape than it was.
She was accused of worse things than cheating and lying.
worse