To be ill-suited or incompatible; like a square peg in a round hole.
她的开放性格与这个传统保守的家庭格格不入，简直是圆凿方枘。
Her open personality was completely incompatible with this traditional and conservative family, it was like a square peg in a round hole.
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To be ill-suited or incompatible; like a square peg in a round hole.