Webster's Revised Unabridged Dictionary · 1913

Roadster

Roadster , noun

1.
(Nautical) A clumsy vessel that works its way from one anchorage to another by means of the tides. — Ham. Nav. Encyc
2.
A horse that is accustomed to traveling on the high road, or is suitable for use on ordinary roads.
A sound, swift, well-fed hunter and roadster. — Thackeray
3.
A bicycle or tricycle adapted for common roads rather than for the racing track.
4.
One who drives much; a coach driver. [English]
5.
A hunter who keeps to the roads instead of following the hounds across country. [English Slang.]