old-fashioned; in ancient style
Describes something that follows an old style or method, often with a slightly negative or nostalgic nuance.
His way of thinking is old-fashioned.
This building was constructed using ancient building methods.
Compound of 昔 (mukashi, 'old times') and 式 (shiki, 'style' or 'ceremony'). The exact historical derivation is uncertain, but the word straightforwardly means 'old-style'.