Entry 1 sense Webster, 1913

jittery

· IPA /ˈd͡ʒɪt.ə.ɹi/

01 adj. being in a tense state; easily upset or frightened; -- of a person.

1.
being in a tense state; easily upset or frightened; -- of a person.

Syn. edgy, fidgety, high-strung, in suspense(predicate), jumpy, nervous, nervy, overstrung, restive, uneasy, uptight.