nervous

1a : timid, apprehensive a nervous smile nervous of strangers

b : easily excited or irritated : jumpy … so nervous that he had to be escorted outside court to vomit …— Kevin Johnson and Andrea Stone

c : of or relating to the nerves also : originating in or affected by the nerves nervous energy a nervous twitch

2a : tending to produce nervousness or agitation : uneasy a nervous situation His face was twisted in nervous anticipation.— Dagoberto Gilb

b : appearing or acting unsteady, erratic, or irregular —used of inanimate things … climbed carefully into his nervous kayak …— Farley Mowat

3 : of, relating to, or composed of neurons

4 : marked by strength of thought, feeling, or style : spirited a vibrant tight-packed nervous style of writing

5 archaic : sinewy, strong

Definition of nervous