Synonyms of unpleasantness

2 Syllables
foulness, unluck, badness
3 Syllables
painfulness, nastiness, horridness, discomfort, odiousness, thorniness, ticklishness
4 Syllables
misfortune, horribleness, casuality, unluckiness
5 Syllables
distastefulness, infelicity, infelicities
6 Syllables
unfortunateness