Australian spelling vs desensitising

Australian spelling is a noun but desensitising is not a noun.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
desensitising	No	Yes	No	No

Australian spelling (noun)	desensitising (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

Australian spelling (adjective)	desensitising (adjective)
	making less susceptible or sensitive to either physical or emotional stimuli