undefinedˈ adjective

1. Not defined
2. Indefinite

• spiral staircase
• spiral staircases
• spirant
• spirants
• spiraster
• spirasters
• spirated
• spiration
• spirations
• spire
• spirea
• spireas
• spired
• spireless
• spireme
• spiremes
• spires
• spire-steeple
• spire-steeples
• spirewise
• spiric
• spirics
• spirier
• spiriest
• spirilla