adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) briars;thicket;the bush

noun (common) (futsuumeishi) wild rose;bramble

noun (common) (futsuumeishi) only applies to けいきょく briar patch

noun (common) (futsuumeishi) idiomatic expression only applies to けいきょく obstacle;source of difficulty;thorn