áo​yá

hard to pronounce

聱牙 áo​yá
hard to pronounce
(literary) difficult to read aloud; clumsy or jarring in phrasing; used to describe text that is choppy or lacks smooth rhythm
contrary
(literary) stubborn; contrary or at odds with something; to go against the grain
gnarled
(literary) gnarled and twisted, especially describing the branches of an old tree