'the inadequate understanding' is correct and usable in written English.
You can use it when referring to someone's limited comprehension of a given subject. For example, "The student demonstrated an inadequate understanding of the material, needing extra help to complete the assignment."
Due to the inadequate understanding of STEM, the science teachers in Malaysia encountered a problem when some teachers were required to teach DLP (Yunus and Sukri 2017).
Despite its predominant role in controlling the functional properties, a longstanding concern in the research of ultrathin amorphous carbon and its hybrid materials is the inadequate understanding of their structural properties, especially on ceramic substrates.
The reluctant attitude to change of some actors and the inadequate understanding of ecosystem services, render it imperative to adopt a comprehensive approach through a participatory process of urban planning.
One reason for limited success in oilseed bioengineering is the inadequate understanding of how to control the flux of fatty acids through various fatty acid modification, and triacylglycerol assembly pathways of the lipid metabolic network.
However, the fracture mechanics approach is rarely used in practical rock engineering design, partly due to the inadequate understanding of complex fracturing processes in jointed rock mass and partly due to the lack of tools that can realistically predict the complex fracturing phenomenon in rock mass.
Despite the advantages of continuous processing of foodstuffs, the inadequate understanding of solid liquid flows even in straight tubes has led to the unavailability of definitive information on sound process design and performance of the equipment used in the thermal treatment of foodstuffs.
Because of the still inadequate understanding of the morphogenesis of filamentous microorganisms, fungal morphology is often a bottleneck of productivity in industrial production.
Given the currently inadequate understanding about drill string dynamic characteristics in gas drilling of horizontal wells, a theoretical model of drill string dynamics is established in this paper.
One of the key issues raised by the women was inadequate understanding of the disease and related services including the screening schedule.
In addition, this trial has robust source data verification and documentation of protocol violations which will allow for re-education if the sites demonstrate inadequate understanding of the protocol.
However, what we have had to deal with here is more to do with inadequate description of the interventions in the primary studies and an inadequate understanding of the causal mechanisms by which the intervention or its variants might exert their effects.
