Synonyms of absurdities

1 Syllable
crap, jazz, bs, bull, jive
2 Syllables
farce, folly
3 Syllables
idiocy, foolishness, craziness, silliness, flapdoodle
4 Syllables
insanity, applesauce, incongruity, inanity, senselessness, ludicrousness, stupidity
5 Syllables
illogicalness, ridiculousness
6 Syllables
illogicality, improbability, unreasonableness, irrationality