folly
nounfeminineformal/ĩsẽsɐˈteʃ/low
in·sen·sa·tez
Definition
The quality or an act of being foolish; lack of good sense or judgment; folly, foolishness.
Investing all his savings in that scheme was an act of pure folly.
The folly of his actions became clear only in hindsight.
Common collocations
sheer follyact of follycommit folly
Etymology
Do latim 'insensatus', -a, -um (irracional) + sufixo '-ez'.