| disturbance(noun, activity, movement, charge, worry) |
| doubt(noun, trouble, worry, concern, anxiety) |
| dourness(noun, sullenness) |
| downer(noun, trouble, worry, concern, anxiety) |
| drag(noun, trouble, worry, concern, anxiety) |
| dread(noun, trouble, worry, concern, anxiety) |
| edginess(noun, activity, movement, excitement, anxiety) |
| ennui(noun, worry, anxiety, disappointment, unhappiness) |
| envy(noun, worry, anxiety, disappointment, unhappiness) |
| exasperation(noun, charge, worry, strain, anxiety) |
| expectancy(noun, excitement, anxiety, anger, irritation) |
| fear(noun, charge, worry, concern, strain) |
| ferment(noun, activity, movement, concern, anxiety) |
| fidgets(noun, trouble, worry, concern, anxiety) |
| fitfulness(noun, activity, movement, anxiety, agitation) |
| flap(noun, trouble, worry, concern, anxiety) |
| foreboding(noun, trouble, worry, concern, anxiety) |
| fret |
| fretting |
| frustration(noun, worry, anxiety, disappointment, unhappiness) |