Synonyms of tedium

1 Syllable
yawn
2 Syllables
dismals, drabness, ennui, deadness, doldrums, dullness
3 Syllables
wistfulness, stodginess, routine, dreariness, sameness, levelness, boredoms, gloominess, languishment, staleness, boredom, tediousness, jadedness, dolefuls
4 Syllables
innocuousness, sterileness, colorlessness, pensiveness, monotone, selfsameness, unvariedness, insipidness, irksomeness, lifelessness, spiritlessness, banality, vapidity, monotony, world-weariness
5 Syllables
insipidity, identicalness, pococurantism, tiresomeness, equability, repetitiousness, wearisomeness, commonplaceness, unchangeableness, miserableness
6 Syllables
predictability, uninterestingness, invariability, repetitiveness
8 Syllables
indistinguishability