The inconstant winds of the desert made it dangerous for early explorers to rely on their compass readings.
沙漠中风向多变，使得早期探险者难以依赖罗盘读数。
Which choice best defines “inconstant”?
B — Frequently changing; not stable. “inconstant” means frequently changing; not stable.
Which word means “frequently changing; not stable”?
B — inconstant. “inconstant” means frequently changing; not stable.
inconstant — frequently changing; not stable. In Chinese: 多变的，不稳定的.
inconstant is pronounced /ɪnˈkɒnstənt/.
The inconstant winds of the desert made it dangerous for early explorers to rely on their compass readings. (沙漠中风向多变，使得早期探险者难以依赖罗盘读数。)
fickle, unstable, volatile — all close in meaning to inconstant (frequently changing; not stable).
constant, steady — each the opposite of inconstant (frequently changing; not stable).
Yes. inconstant 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.