Grammar fix

a profound impact

deep and lasting effect

a very strong and significant effect that changes someone or something in a deep, often long-term way.

collocationC1common

Hear it in context

Notice where the phrase sounds natural.

The teacher's encouragement had a profound impact on her confidence.daily life
I believe that technology has had a profound impact on the way we communicate, making it much easier to stay in touch with people around the globe.IELTS speaking

Pattern: have/make a profound impact (on someone/something)

WrongIt had a profound impact to society.

RightIt had a profound impact on society.

'An impact ON something', not 'to'.

Patternhave/make a profound impact (on someone/something)

Choose the version that sounds natural in speech.

Stiff The event exerted a deeply consequential and far-reaching impact.

Natural It had a profound impact on me.

'Exerted a consequential impact' is heavy; 'had a profound impact on' is the natural pairing.

Words that usually travel with it.

Unlike 'a big impact', which can refer to any noticeable effect, 'a profound impact' emphasizes depth, significance, and often lasting change.