Is superfluous a noun?

[Gabriella]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #88 "Verbal Advantage", question 8

Many of the safety instructions on things you buy often seem unnecessary and often quite ......... to the average person.

(a) superb
(b) supreme
(c) superfluous
(d) superficial

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #88 "Verbal Advantage", answer 8

Many of the safety instructions on things you buy often seem unnecessary and often quite superfluous to the average person.

Correct answer: (c) superfluous
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is superfluous a noun?

Gabriella

[Alan]

No,

It is an adjective - the instructions seem quite unnecessary

A
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