1. not used as much as could be beneficial or appropriate; not utilized to full potential

Examples

• The community center remains underused despite its excellent facilities.
• Many talented employees feel underused in their current positions.
• The park’s hiking trails are surprisingly underused by locals.
• This software feature is underused because most people don’t know it exists.
• The library’s research databases are underused by students.
• The company’s training budget has been underused for years.