- The definition of ludicrous is something so absurd it's laughable.
An example of ludicrous is the claim that President Obama was born outside of the United States.
ludicrous definition by Webster's New World
Origin: Classical Latin ludicrus ; from ludus, a play, game ; from Indo-European base an unverified form leid-, to play, tease from source Classical Greek loidorein, to rail at, rebuke
ludicrous definition by American Heritage Dictionary
Origin: From Latin lūdicrus, sportive, from lūdus, game; see leid- in Indo-European roots.
- luˈdi·crous·ly adverb
- luˈdi·crous·ness noun