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realistic; practical; feasible
計画に現実性を欠いている。
The plan is lacking in feasibility.
当初の提案は現実性を欠くと批判された。
The original proposal was criticized for lacking feasibility.
技術の進歩で昔は夢物語だった構想にも現実性が出てきた。
Thanks to technological progress, concepts once dismissed as fantasy are now taking on real feasibility.