a person who drives slowly, timorously, or unskilfully, as if used to driving onlyon Sundays when the roads are relatively quiet
Sunday driver in American English
noun
a person who drives a car inexpertly, esp. slowly or overcautiously, in the manner of one who drives infrequently
Word origin
[1915–20]This word is first recorded in the period 1915–20. Other words that entered Englishat around the same time include: GI, collage, neorealism, soviet, supernationalism