形容詞 jittery:

1. characterized by jerky movements
2. being in a tense state
   同義詞：edgy, high-strung, highly strung, in suspense, jumpy, nervy, overstrung, restive, uptight

jit.ter.y

adj.（形容詞）
jit.ter.i.er,jit.ter.i.est
Having or feeling nervous unease:
緊張不安的，神經(jīng)過敏的：
例句：
a jittery vigil in the dark.
在黑暗中緊張不安的失眠

Marked by jittering movements:
抖動著的：以緊張不安的動作為特征的：
例句：
a jittery ride over rough terrain.
在崎嶇地帶的一段顛簸路程

【引伸】
jit.teriness
n.（名詞）