Despite centuries of erosion, the ancient stone bridge remained remarkably intact, its arches still bearing the weight of modern traffic.
尽管经历了数个世纪的侵蚀，这座古石桥依然完好无损，其拱门仍能承受现代交通的重量。
Contrary to the common assumption that ancient Roman concrete was inferior to modern concrete, recent analysis of Roman harbor structures that have survived intact for two thousand years suggests that certain volcanic-ash mixtures used by Roman builders actually grow stronger over time when exposed to seawater.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “intact”?
A — Undamaged, whole. “intact” means undamaged, whole.
Which word means “undamaged, whole”?
D — intact. “intact” means undamaged, whole.
intact — undamaged, whole. In Chinese: 完好无损的.
intact is pronounced /ɪnˈtækt/.
Despite centuries of erosion, the ancient stone bridge remained remarkably intact, its arches still bearing the weight of modern traffic. (尽管经历了数个世纪的侵蚀，这座古石桥依然完好无损，其拱门仍能承受现代交通的重量。)
undamaged, whole, unbroken — all close in meaning to intact (undamaged, whole).
damaged, broken — each the opposite of intact (undamaged, whole).
Yes. intact is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
in(not)+tact(touch)