That sort of thing was under fire even then, but it's a particularly ridiculous idea by the standards of today's society.

It was a ridiculous idea from the start.

I'd had this rather ridiculous idea that we were through it and now we face an even bigger tidal wave.

We have this ridiculous idea that it's unromantic to talk about money.

Forget the ridiculous idea that hot romance lasts for ever, or must be sought in serial monogamy.