pint-sized vs runty

pint-sized and runty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pint-sized	No	Yes	No	No
runty	No	Yes	No	No

As adjectives, pint-sized and runty are synonyms defined as:

Other synonyms of pint-sized include pint-size, sawed-off, sawn-off.

pint-sized (adjective)	runty (adjective)
well below average height	well below average height
	(used especially of persons) of inferior size