speaking vs nonspeaking

speaking is a noun but nonspeaking is not a noun.

Word	Noun	Adjective	Verb	Adverb
speaking	Yes	Yes	No	No
nonspeaking	No	Yes	No	No

speaking (noun)	nonspeaking (noun)
delivering an address to a public audience
the utterance of intelligible speech

speaking (adjective)	nonspeaking (adjective)
capable of or involving speech or speaking	not capable of or especially not involving speech or spoken lines
capable of speech