厚あつい壁かべMeaningsExpressionNoun1. hard-to-overcome obstacle; high hurdle; thick wall (Idiom)Kanji used厚thick (in size)壁wallComposed of厚あついthick; deep; heavy; kind; cordial; hospitable; warm; faithful; abundantI-adjective壁かべwall; partition; barrier; obstacle; hindrance; difficulty; wall (of stones)Noun