ludicrousness
🇺🇸
/ˈluːdɪkrəsnəs/
🇬🇧
/ˈluːdɪkrəsnəs/
something that is very silly or unreasonable
The plan to travel to the moon by bicycle shows the ludicrousness of their ideas.
騎自行車去月球的計畫顯示了他們想法的荒謬性。