plodder vs slowcoach

plodder and slowcoach both are nouns.

Word	Noun	Adjective	Verb	Adverb
plodder	Yes	No	No	No
slowcoach	Yes	No	No	No

As nouns, plodder and slowcoach are synonyms defined as:

Other synonyms of plodder include slowpoke, stick-in-the-mud.

plodder (noun)	slowcoach (noun)
someone who moves slowly	someone who moves slowly
someone who works slowly and monotonously for long hours
someone who walks in a laborious heavy-footed manner