expression, noun
timeless masterpiece; immortal work
Used for works of art, literature, film, etc. that are considered to have lasting value and will be appreciated forever.
この映画は不朽の名作と言われている。
This movie is said to be a timeless masterpiece.
彼の小説は不朽の名作として読み継がれている。
His novel has been passed down as an immortal work.
Compound of 不朽 (immortal, unfading) + の (possessive particle) + 名作 (masterpiece). The phrase is a straightforward combination of its parts.