Synonyms of imbecility

1 Syllable

bunk

2 Syllables

twaddle, daftness, folly, madness, rubbish, follies, claptrap, weakness

3 Syllables

idiocy, poppycock, fatuousness, witlessness, lunacies, battiness, mistake, zaniness, wackiness, nuttiness, flakiness, craziness, absurdness, carrying-on, dottiness, tommyrot, brainlessness, doltishness, dotage, idiocies, nonsense, lunacy, shallowness, cretinism, foolery, silliness

4 Syllables

tomfoolery, insanity, senescence, nitwittedness, thick-headedness, weak-mindedness, inanity, senselessness, imprudence, ludicrousness, stupidities, absurdity, obtuseness, unwiseness, thickheadedness, indiscretion, stupidity

5 Syllables

asininity, preposterousness, feeble-mindedness, feeblemindedness, injudiciousness

6 Syllables

impracticality, insensibility, unreasonableness, irrationality, nonsensicality

7 Syllables

inadvisability, irresponsibility