1. Without pity; in a merciless manner
   - mercilessly, unmercifully, remorselessly

See also: pitiless

• Leptoglossus
• leptomeninges
• leptomeningitis
• lepton
• Leptopteris
• Leptopteris superba
• Leptoptilus
• Leptoptilus crumeniferus
• Leptoptilus dubius
• leptorhine
• leptorrhine
• leptorrhinian
• leptorrhinic
• Leptospermum
• Leptospermum scoparium
• leptospira
• leptospirosis
• leptosporangiate
• leptosporangium
• leptotene
• Leptotyphlopidae
• Leptotyphlops
• Leptotyphlops humilis
• Lepus
• Lepus americanus