[syn: stupidity, betise, folly, foolishness, imbecility]
The Collaborative International Dictionary of English v.0.48:
Foolishness \Fool"ish*ness\, n.
1. The quality of being foolish.
[1913 Webster]
2. A foolish practice; an absurdity.
[1913 Webster]
The preaching of the cross is to them that perish
foolishness. --1 Cor. i.
18.
[1913 Webster]
WordNet (r) 3.0 (2006):
foolishness
n 1: the trait of acting stupidly or rashly [syn: folly,
foolishness, unwiseness] [ant: wisdom, wiseness]
2: the quality of being rash and foolish; "trying to drive
through a blizzard is the height of folly"; "adjusting to an
insane society is total foolishness" [syn: folly,
foolishness, craziness, madness]
3: a stupid mistake [syn: stupidity, betise, folly,
foolishness, imbecility]