unreasonable; that you cannot take seriously synonym absurd, ridiculous a ludicrous suggestion It was ludicrous to think that the plan could succeed. He is paid a ludicrous amount of money. Oxford Collocations Dictionary verbsappear, be, look, … adverbabsolutely, completely, just, … See full entry Word Originearly 17th cent. (in the sense ‘sportive, intended as a jest’): from Latin ludicrus (probably from ludicrum ‘stage play’) + -ous.Extra examples The whole idea is absolutely ludicrous! It was ludicrous to think that the plan might succeed. That’s a ludicrous suggestion! These allegations are absolutely ludicrous. This is ludicrous! Of course no one’s going to murder you!
Check pronunciation: ludicrous
