After several sleepless nights during the research expedition, the team leader became irritable and snapped at minor mistakes.
在研究探险中连续几个不眠之夜后，队长变得易怒，对细微的错误也会发火。
Which choice best defines “irritable”?
B — Easily annoyed or made angry. “irritable” means easily annoyed or made angry.
Which word means “easily annoyed or made angry”?
B — irritable. “irritable” means easily annoyed or made angry.
irritable — easily annoyed or made angry. In Chinese: 易怒的，急躁的.
irritable is pronounced /ˈɪrɪtəbl/.
After several sleepless nights during the research expedition, the team leader became irritable and snapped at minor mistakes. (在研究探险中连续几个不眠之夜后，队长变得易怒，对细微的错误也会发火。)
testy, petulant, grumpy — all close in meaning to irritable (easily annoyed or made angry).
calm, placid — each the opposite of irritable (easily annoyed or made angry).
Yes. irritable 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.