aflutter

afraid agitated anxious frightened hesitant jittery nervous panicky scared shy skittish tense timid uneasy

aghast chicken chickenhearted diffident discomposed disquieted disturbed fainthearted goose-bumpy have cold feet in a dither intimidated jumpy lily-livered mousy nerveless nervy perturbed phobic pusillanimous quivery rabbity running scared shaky sheepish shrinking solicitous spineless timorous tremulous unmanly weak-kneed worried yellow

bold brave calm composed confident cool easygoing extroverted fearless happy laid-back unafraid unworried

courageous good inapprehensive nice pleasant unfearful