underutilize
Definitions
To use something less than its full potential or capacity.
To fail to make effective or sufficient use of a resource or person.
Examples
Many companies underutilize their employees' potential by failing to provide adequate training opportunities.
It is a mistake to underutilize the advanced features of this software when they could significantly improve your workflow.
Synonyms
squander mismanage waste neglect underemploy fail to maximize
Antonyms
maximize optimize utilize fully exploit employ make the most of