A person (especially one in an educational establishment) who is not a student.(noun)
Not relating to students.(adjective)
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Use "nonstudent" in a sentence
"Google's Li Kaifu points to a study by China Intelliconsulting showing that Google attracts better-educated searchers: About half of nonstudent Google users have college degrees compared with about a third of Baidu users."
"The magazine quoted Chief Jenkins calling SNCC the “violent, nonstudent committee,” a laugh line he would use over the next few years on the law-and-order luncheon circuit."
"And how often will the instrument — the only pipe organ in a major New York City concert hall — be used for nonstudent events in the future?"