榆木脑袋 yúmùnǎodai blockhead Origin Definitions Defs Strokes Stroke Words Sentences Sents 榆木 yúmù stubborn; slow-witted (figurative) blockheaded, typically as a modifier in phrases like 榆木疙瘩 yúmùgēda or 榆木脑袋 yúmùnǎodai脑袋 腦袋 nǎodai noun head (colloquial) head of a person or animal; skull