According to the
COD, which word means "not necessary":
non-essential or inessential?
Etymology, Etymology, and more Etymology
as well as grammar, usage, euphemism, slang, jargon, semantics, linguistics, neologism, idiom, cant, and argot.
The critically-acclaimed board game
consists of tough questions about the nuances of the English language.
That which is "not necessary' is
inessential, whereas that which is "not essential" is
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