adjectival noun or quasi-adjective, takes genitive case の, noun

  1. formal, official, regular, proper, legal, due (formalities).

Variations

Pronunciation Kanji Kana Is Common
正式 せいしき

Contained Kanji Breakdown

correct, justice, righteous
セイ ショウ ただし (1st, N4)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
stop, halt
と.まる シ どめ (2nd, N4)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク うらな.う うらない (Kentei Pre-1)
style, ceremony, rite
シキ のり (3rd, N3)
piling, ceremony radical (no. 56)
ヨク いぐるみ (Kentei 1)
craft, construction, katakana e radical (no. 48)
コウ ク もく (2nd, N4)