also: しんめんぼく
noun
new look; new appearance; new face
Refers to a fresh or renewed outward appearance, often of a person, place, or thing. Can imply a positive transformation or a completely new aspect.
改装後の店は新面目を呈している。
The shop after renovation presents a new look.
彼は転職して新面目を発揮した。
He changed jobs and showed a new side of himself.
Compound of 新 (new) and 面目 (appearance, face, honor). The exact historical derivation is uncertain, but the word is conventionally associated with a renewed or fresh outward appearance.