adjective
1.
Synonyms: unnecessary , inessential, needless, uncalled-for, unessential, unneeded, unneedful
Antonyms: required
2.
Synonyms: dispensable , nonessential, unessential
Antonyms: required
UNREQUIRED
Meaning of UNREQUIRED in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003