Choose the perfect synonym or antonym for the word

Unnecessary

/ʌnˈnesəsəri/

Not needed or required; something that is excess or superfluous.

Synonyms:

If he wanted to be a chemist, culture would be unnecessary.'I think it is almost unnecessary, mama.'"But it is unnecessary to have it.

Derived from Latin necessarius meaning indispensable with the prefix un- indicating negation.

40 mentions per 1 million words

Often

Hint: Frequency according to COCA