Modifiers matching utility:

• useful,
• basic,
• essential,
• suspended,
• intensive,
• smaller,
• extensive,
• supporting,
• modern,
• local,
• private,
• everyday,
• main,
• regional,
• electrical,
• personal,
• necessary,
• tangible,
• wired,
• economic,
• urban,
• municipal,
• common,
• crucial,
• compatible,
• sized,
• complex,
• clinical,
• linear,
• affordable,
• monthly,
• functional,
• traditional,
• environmental,
• critical,
• domestic,
• special,
• miscellaneous,
• regulated,
• diagnostic,
• underground,
• excellent,
• auxiliary,
• sufficient,
• available,
• temporary,
• physical,
• supportive,
• individual,
• efficient,
• primary,
• exempt,
• electric,
• subsurface,
• vital,
• exterior,
• public,
• social,
• normal,

Simple categories matching subsurface:

• structure,
• layer,
• cavity,
• material,
• construction,
• facility,
• installation,
• feature,
• liquid,
• body,
• excavation,
• system,
• property,
• reservoir,
• condition,
• area,
• component,
• fluid,
• object,
• attribute,
• detail,
• imperfection,
• process,
• item,
• anomaly,
• artifact,
• data,
• resource,
• measure,
• information,
• utility,
• quantity,
• drain,
• mineral,
• industry,
• variation,
• platform,
• change,
• rock,
• separation,
• void,
• defect,
• sorbent,
• variable,
• soil,
• obstruction,
• stratum,
• formation,
• deposit,