ragtop

/ˈræɡˌtɑp/
noun
  1. A car with a roof that can be folded back or removed; a convertible.
    • He drove his red ragtop along the coast with the wind in his hair.
    • The old ragtop had a torn canvas roof that needed to be replaced.
    • On sunny days, she loves to take the ragtop out for a spin.
Antonyms