圆凿方枘

[成语]
yuán záo fāng ruì

[含义]
枘：榫头；凿：榫眼。方榫头，圆榫眼，两下里合不来。比喻格格不入。

[来源]
战国楚·宋玉《九辩》：“圆凿而方枘兮，吾固知其龃龉而难入。”

[用法]
联合式；作谓语；含贬义

[同义词]
圆孔方木


[英文]
like a square tenon for a round mortise ---- at variance with each other