adjective, road·wor·thi·er, road·wor·thi·est.
in suitable operating condition or meeting accepted standards for safe driving on the road: a roadworthy automobile.
Origin of roadworthy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of a motor vehicle) mechanically sound; fit for use on the roads
noun plural -ies
Southern African a certificate of roadworthiness for a motor vehicle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012