superfluous
日本語WordNet
serving no useful purpose; having no excuse for being; "otiose lines in a play"; "advice is wasted words"; "a pointless remark"; "a life essentially purposeless"; "senseless violence"
more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy"
JMdict
AIによる解説
More than is needed; unnecessary. An adjective describing something excessive or redundant.
ライセンス: KeyLang Original
Adding more decorations would be superfluous.
これ以上装飾を加えるのは不必要だろう。
Pronunciation data from ipa-dict (MIT License) based on cmudict-ipa by @lingz