Likely words are "superfluous" or "extraneous."
The similar word is redundant (duplicating a function).
synonymize
Unnecessary, not needed, optional
"Alternate word" is a noun-phrase that is kind of a synonym for the word "synonym. There is no one exact word that means the same as synonym.
"Alternate word" is a noun-phrase that is kind of a synonym for the word "synonym. There is no one exact word that means the same as synonym.
Actually, there is no one word that rhymes exactly with unnecessary.
A synonym for the word escape would be flee.
The media irresponsibly reported an unconfirmed rumor, causing an unnecessary, widespread panic. The word widespread is an adjective, and the word extensive is a synonym.
Synonyms: insignificant, unnecessary, inappropriate, unimportant Antonyms: relevant, appropriate, necessary, significant, important
One synonym for choice is option.
The one word synonym for "underground passageway" is "tunnel".
unnecessary
comet