One recalcitrant valve delayed the launch, refusing to seal at the low temperatures the test required.
一个不听使唤的阀门推迟了发射，它在测试所需的低温下始终无法密封。
Which choice best defines “recalcitrant”?
B — Stubbornly resistant.. “recalcitrant” means Stubbornly resistant..
Which word means “Stubbornly resistant.”?
A — recalcitrant. “recalcitrant” means Stubbornly resistant..
recalcitrant — Stubbornly resistant.. In Chinese: 顽抗的；不服管的.
recalcitrant is pronounced //rɪˈkælsɪtrənt//.
One recalcitrant valve delayed the launch, refusing to seal at the low temperatures the test required. (一个不听使唤的阀门推迟了发射，它在测试所需的低温下始终无法密封。)
unruly, defiant, uncooperative — all close in meaning to recalcitrant (Stubbornly resistant.).
compliant, docile — each the opposite of recalcitrant (Stubbornly resistant.).
Yes. recalcitrant is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. 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.
同 recalcitrance → 桀骜的。