British spelling vs appetising

British spelling is a noun but appetising is not a noun.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
appetising	No	Yes	No	No

British spelling (noun)	appetising (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

British spelling (adjective)	appetising (adjective)
	appealing to or stimulating the appetite especially in appearance or aroma