1. In a relentless manner
   "he worked relentlessly"
   - unrelentingly

See also: relentless

• plane-polarised
• plane-polarized
• plane-tree family
• planeness
• planer
• Planera
• planet
• planet gear
• planet wheel
• planetal
• planetarium
• planetary
• planetary gear
• planetary house
• planetary nebula
• planetary science
• planetesimal
• planetesimal hypothesis
• planetoid
• planetology
• plangency
• plangent
• planimeter
• planing machine
• planish