1. Any agent that retards or delays or hinders
   - retardant, retardation

Type of: agent

• Argentinian
• Argentinidae
• argentinosaur
• argentite
• argentous
• argil
• argillaceous
• argillaceous rock
• argillite
• arginine
• Argiope
• Argiope aurantia
• Argiopidae
• Argive
• argle-bargle
• Argo
• argol
• argon
• argonaut
• Argonauta
• Argonauta argo
• Argonautidae
• Argonne
• Argonne Forest
• argonon