The idea that most parents are in charge of their children today is a rather outdated and ludicrous idea.

The words were polite, but it was quite evident that he found the mere idea totally ludicrous.

She giggled, as if this were a completely ludicrous idea.

That had been a ludicrous idea in the first place.

Nangi arranged his expression to indicate that he was giving this ludicrous idea serious thought.

It was such a ludicrous idea that they didn't bring it up for two whole weeks.

Most of the humour is based on word play and the ludicrous ideas which are presented.

And I hope you know what a ludicrous idea that is.

Collaboration is now considered a quaintly ludicrous idea in both camps, according to just about anyone who tries to deal with them.

It seemed too ludicrous an idea to have any grounding in the real world.