no-show vs nonattender

no-show and nonattender both are nouns.

Word	Noun	Adjective	Verb	Adverb
no-show	Yes	No	No	No
nonattender	Yes	No	No	No

As nouns, no-show and nonattender are synonyms defined as:

Other synonyms of no-show include truant.

no-show (noun)	nonattender (noun)
someone who shirks duty	someone who shirks duty
a guest who fails to notify a hotel or restaurant when canceling a reservation