Eating too much sugar is bad for your teeth.
bad for sb/sth
idiomHarmful or having a negative effect on someone or something. Things that are bad for you might be unhealthy or cause problems.
The doctor told him that smoking is bad for his health and he should stop.
Constant stress in the workplace is undeniably bad for the long-term well-being and productivity of the entire team.
Last updated April 22, 2026