| engrossment(noun, force, concern, demand, need) |
| entanglement(noun, trouble, change, mess, situation) |
| essence(need, essential, requirement, prerequisite, essentiality) |
| essential(noun, right, concern, demand, want) |
| exaction(concern, demand, need, essential, requirement) |
| expectancy(noun, worry, strain, anxiety, burden) |
| expedition(noun, drive, press, rush, dash) |
| expeditiousness(noun, drive, press, rush, dash) |
| extension(noun, worry, strain, anxiety, burden) |
| fanaticism(noun, passion, spirit, determination, enthusiasm) |
| fascination(noun, need) |
| fastness(noun, haste) |
| fear(noun, worry, strain, anxiety, burden) |
| fearfulness(noun, worry, strain, anxiety, burden) |
| ferment(noun, worry, strain, anxiety, burden) |
| fervor(noun, passion, spirit, determination, enthusiasm) |
| fever(noun, need) |
| feverishness(noun, haste) |
| fidget |
| fierceness(noun, passion, spirit, determination, enthusiasm) |