NERVOUS

adjective Date: 14th century sinewy , strong , marked by strength of thought, feeling, or style ; spirited , of, relating to, or composed of neurons, 4. of or relating to the nerves, easily excited or irritated ; jumpy , timid , apprehensive , 5. tending to produce ~ness or agitation ; uneasy , appearing or acting unsteady, erratic, or irregular, see: vigorous ~ly adverb ~ness noun