workingman vs Luddite

workingman and Luddite both are nouns.

Word	Noun	Adjective	Verb	Adverb
workingman	Yes	No	No	No
Luddite	Yes	No	No	No

As nouns, Luddite is a hyponym of workingman; that is, Luddite is a word with a more specific, narrower meaning than workingman:

workingman: an employee who performs manual or industrial labor
Luddite: one of the 19th century English workmen who destroyed laborsaving machinery that they thought would cause unemployment

workingman (noun)	Luddite (noun)
an employee who performs manual or industrial labor	one of the 19th century English workmen who destroyed laborsaving machinery that they thought would cause unemployment
	any opponent of technological progress