The phrase "a substantially reduced" is correct and usable in written English.
It can be used when describing something that has been significantly decreased in size, amount, or degree.
Example: "The company reported a substantially reduced profit margin this quarter compared to the last."
Alternatives: "a significantly lowered" or "a markedly diminished".
The team provides for most doctors' basic needs for samples and information at a substantially reduced cost.
And, above all, MOFs could be delivered to the market at a substantially reduced price.
A student who is permitted to undertake nonresident thesis research must register as a nonresident doctoral candidate and pay a substantially reduced tuition.
The site, which once was dominated by the Armory and its surrounding asphalt parking lot, will have a substantially reduced impervious surface area.
These students have limited access to the facilities and academic life of the Institute, may not receive financial support through MIT, and pay a substantially reduced tuition.
Here we trace the origin of the granule cell deficit to precursors in early postnatal development, which show a substantially reduced mitogenic response to Hedgehog protein signaling.
Using the latest material and increasing femoral head diameter were associated with a substantially reduced risk of fracture.
Instead, officials attributed it to expanded H.I.V. testing and treatment, which resulted in a substantially reduced death rate from H.I.V. and AIDS.
But players who must sign new contracts starting next season would face a lower salary cap and a substantially reduced payday.
A coalition of progressive groups is starting a state-level campaign to close the so-called carried interest loophole, which allows fund managers to pay a substantially reduced federal tax rate on much of their income.
Loose staggered-in-time coupling of two independent flow and mechanics simulators captures much of the complex physics at a substantially reduced cost.
