jitteriness

/ˈdʒɪtərinəs/
noun
  1. The state or quality of being nervous, anxious, or unable to stay still.
    • Her jitteriness before the exam made it hard for her to focus.
    • The jitteriness of the crowd grew as the concert start time passed.
    • Too much caffeine can cause jitteriness and a racing heart.
Antonyms
What does "jitteriness" mean? | whatsthatwordmean | whatsthatwordmean