| insipidness(noun, excite, depression, lack, routine) |
| jejuneness(noun, excite, depression, lack, routine) |
| plainness(noun, simplicity, dullness) |
| sterileness(noun, excite, lack, routine, dullness) |
| sterility(noun, excite, lack, routine, dullness) |
| stodginess(noun, excite, lack, routine, dullness) |
| uniformity |
| vapidness(noun, excite, depression, lack, routine) |
| aridity(noun, routine, dullness, slowness, tedium) |
| ashiness(noun, grayness) |
| austerity(noun, simplicity, dullness, harshness, plainness) |
| banality(noun, routine, dullness, feebleness, monotony) |
| blandness(noun, excite, depression, lack, routine) |
| bleakness(noun, harshness, gloominess, dreariness) |
| boredom(noun, routine, dullness, slowness, tedium) |
| boringness(noun, depression, dullness, tedium, plainness) |
| changelessness |
| commonplaceness(noun, routine, dullness, slowness, tedium) |
| dapple-grayness(noun, grayness) |
| darkness |