unnecessary risk

What Are The Synonyms For Unnecessary? avoidable. gratuitous. needless. redundant. superfluous. unneeded. useless. worthless. What is the synonym and antonym of unnecessary? unnecessary. Antonyms: essential, indispensable, inevitable, infallible, necessary, needed, needful, required, requisite, unavoidable, undeniable. Synonyms: casual, contingent, needless, non-essential, optional, useless, worthless. What is the synonym of the word unnecessary? worthless, needless, superfluous, gratuitous,