dumpy vs low-set

dumpy and low-set both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dumpy	No	Yes	No	No
low-set	No	Yes	No	No

As adjectives, dumpy and low-set are synonyms defined as:

dumpy and low-set: short and thick; as e.g. having short legs and heavy musculature

Other synonyms of dumpy include chunky, squat, squatty, stumpy.

dumpy (adjective)	low-set (adjective)
resembling a garbage dump	lower than average
short and plump	short and thick; as e.g. having short legs and heavy musculature
short and thick; as e.g. having short legs and heavy musculature