世間知

せけんち

worldly wisdom; knowledge of the ways of the world

世間周知

せけんしゅうち

common knowledge, widely known, known to everybody

知らず知らず

しらずしらず

unconsciously, unwittingly, unawares

世知

せち

worldly wisdom, gumption

知らず

しらず

not having, unaffected by

世間

せけん

world, society

見ず知らず

みずしらず

strange, unfamiliar, unknown, new

親知らず

おやしらず

wisdom tooth

恥知らず

はじしらず

shameless (person)

命知らず

いのちしらず

recklessness, daredevilry, rashness

身知らず

みしらず

self-conceit, neglecting one's health

我知らず

われしらず わがしらず

involuntarily, instinctively, without realizing

恩知らず

おんしらず

ingratitude

汗知らず

あせしらず

prickly heat powder, baby powder, talc powder

露知らず

つゆしらず

utterly ignorant, not knowing, having no idea, (being a) blithering idiot

藪知らず

やぶしらず

labyrinth; maze

知らぬ間に

before one knows it; before one realises; without one's knowledge; without noticing

間知石

wedge-shaped stone used in stone walls; square stone narrowing at one end

間知ブロック

けんちブロック

wedge-shaped concrete block used to construct walls; square concrete block narrowing at one end