detrimental

detrimental

CEFR: C1-C2 /detri-men-tal/ [d.eh2.t.r.ah0.m.eh1.n.t.ah0.l]

Detrimental is a formal way of saying "harmful." If you're writing a paper and want to pick an alternative to harmful that sounds more formal, detrimental is a great choice. The phrases 'be detrimental to' and "have a detrimental effect/impact on something" are often used. Here are example sentences:

Example Sentences:
These chemicals have a detrimental effect/impact on the environment.
Their decision could be detrimental to the future of the company.
Smoking is detrimental to your health.
Eating too much sugar can be detrimental to your health.
Watching too much TV is detrimental to a child's intellectual and social development.
Watching too much TV has a detrimental impact on child's intellectual and social development.​