largish vs large

largish is not a noun while large is a noun.

Word	Noun	Adjective	Verb	Adverb
largish	No	Yes	No	No
large	Yes	Yes	No	Yes

largish (noun)	large (noun)
	a garment size for a large person

largish (adjective)	large (adjective)
somewhat large	above average in size or number or quantity or magnitude or extent
	having broad power and range and scope
	conspicuous in position or importance
	generous and understanding and tolerant
	in an advanced stage of pregnancy
	ostentatiously lofty in style
	fairly large or important in effect; influential

largish (adverb)	large (adverb)
	with the wind abaft the beam
	at a distance, wide of something (as of a mark)
	in a boastful manner