do poorly
Definitions
To perform a task or activity with a low level of success or quality.
To experience unfavorable results or negative outcomes in a specific endeavor.
Examples
Students who do not study for their exams often do poorly.
The team will likely do poorly this season if they do not improve their defense.
Synonyms
fail underperform struggle falter flop miss the mark fall short
Antonyms
succeed excel thrive prosper flourish perform well hit the mark