浸透
JLPT N1 · Nounしんとう(shintou)声调 0
permeation (of thought, ideology, culture, etc.); infiltration (e.g. of ideas); spread; permeation (of a liquid, etc.); soaking; percolation
西洋文化が日本の若者の心に浸透した。— Western culture permeated the hearts of Japan's youth.