Malaise, Misgive, Misgiving, Nerves, Nervousness, Nightmare, Panic, Pause, Perturbation, Phobia, Ponder, Presentiment, Qualms, Quiver, Respect, Retreat, Revere, Reverence, Scare, Scruple, Shy, Softness, Solicitude, Stew, Strain, Suspect, Suspense, Tension, Terror, Tic, Timidity, Trepidation, Trouble, Twitching, Unease, Uneasiness, Upset, Venerate, Veneration, Vexation, Weakness, Withdraw, Worry, Yield, Zeal, Agitation, Alarm, Angst, Anticipate, Anxiety, Apprehend, Apprehension, Awe, Balance, Bogey, Bogy, Bugbear, Care, Concern, Consternation, Cowardice, Debate, Deliberate, Demur, Diffidence, Dismay, Disquiet, Disquietude, Distress, Disturbance, Dread, Esteem, Expect, Faintness, Falter, Feebleness, Fidgets, Foreboding, Forebodings, Foresee, Frailty, Fright, Funk, Hesitate, Hesitation, Horror, Hover, Imagine, Infirmity