1. Subjected to or capable of operating under relative low voltage
   - low-voltage

Antonym: high-tension

• underpass
• underpay
• underpayment
• underperform
• underperformer
• underpin
• underpinning
• underplant
• right-winger
• righteous
• righteously
• righteousness
• righteye flounder
• righteyed flounder
• rightfield
• rightful
• rightfully
• rightfulness
• righthander
• rightish
• rightism
• rightist
• rightly
• rightmost
• rightness