"the foremost objective" is a correct and usable phrase in written English.
It is used to refer to the most important goal or aim of something. For example, "The school's foremost objective is to provide a quality education to all of its students."
Suitable design parameters have been set to meet the foremost objective of reaching a high fast neutron flux while respecting all technological constraints.
This is the Department's most solemn duty and the foremost objective with the lethal injection procedure is a humane and dignified process," Michelle Glady, communications director for the Florida Department of Corrections said in an email.
The foremost objective of this review is to provide an overview on the latest research on improved electrode performance and current perspectives on porous electrode materials for future Li-ion batteries.
Therefore, the foremost objective should be its economic value and should be open for other economies fulfilling the preliminary requirements.
The foremost objective of this newly emerging subject is to elucidate the mechanisms of adaptation in a new habitat.
The foremost objective of the reform was to liberate the marketing policy in the sector by breaking the long-time monopoly being enjoyed by the NEPA.
One of the foremost objectives of BiO was to address the speed and quality of review.
On the other hand, the first and foremost objective of the Islamic Republic is the lifting of economic sanctions.
That's why the first and foremost objective of a war is the defense of the ego.
The first and foremost objective of scenarios is to illustrate the future as an open space of possible developments that we cannot foresee; they are instruments to think about alternative futures.
An assault on them could have the effect of allowing the Assad regime to achieve what it says is its foremost objective, the recapture of Aleppo, tipping the balance of the civil war in its favor.
