Sunday driver

noun

1. a person who drives a car inexpertly, especially slowly or overcautiously, in the manner of one who drives infrequently.

Sunday driver

noun

1. informal.
   a person who drives slowly, timorously, or unskilfully, as if used to driving only on Sundays when the roads are relatively quiet

Word History and Origins

Origin of Sunday driver¹

First recorded in 1915–20