1. Not encumbered with a physical burden or load
   - burdenless, unburdened

See also: unencumbered

• uptake
• upthrow
• upthrust
• uptick
• uptight
• uptil
• uptime
• Upton Beall Sinclair
• Upton Sinclair
• uptown
• uptrend
• upturn
• upturned
• Upupa
• Upupa epops
• Upupidae
• upward
• upwardly
• upwardly mobile
• upwards
• upwelling
• upwind
• Ur
• uracil
• uraemia