The desert landscape conveyed a sense of endlessness, with dunes stretching to the horizon without interruption.
沙漠景观传达出一种无尽的感觉，沙丘连绵不断，一直延伸到地平线。
Which choice best defines “endlessness”?
B — The state of having no end. “endlessness” means the state of having no end.
Which word means “the state of having no end”?
C — endlessness. “endlessness” means the state of having no end.
endlessness — the state of having no end. In Chinese: 无尽.
endlessness is pronounced /ˈɛndləsnəs/.
The desert landscape conveyed a sense of endlessness, with dunes stretching to the horizon without interruption. (沙漠景观传达出一种无尽的感觉，沙丘连绵不断，一直延伸到地平线。)
infinity, perpetuity, boundlessness — all close in meaning to endlessness (the state of having no end).
finiteness, limitation — each the opposite of endlessness (the state of having no end).
Yes. endlessness 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.