The phrase "a ludicrous thing to" is correct and usable in written English.
It can be used when describing an action or idea that is absurd or ridiculous in nature.
Example: "It seems like a ludicrous thing to suggest that we can solve this complex problem overnight."
Alternatives: "an absurd thing to" or "a ridiculous thing to".
"Seriously, that's a ludicrous thing to say.
What a ludicrous thing to say.
I mean, what a ludicrous thing to say".
"People have died because of the bedroom tax," said one audience member to the Tory prime minister, which was a ludicrous thing to say of a pretty minor welfare reform; yet it was revealing of a general antipathy.Mr Cameron can at least counter that it is hard to make people love you while presiding over deep spending cuts.
"That would be a ludicrous thing to do," said one, speaking only on condition that neither he nor his agency be identified.
Hollywood provides many good examples of adults who ought to know better that following trends can be a ludicrous thing to do when one grows older.
I think that's a frankly ludicrous thing to say … The idea that you can compare Damian McBride, who worked in Gordon Brown's office as his right-hand, with something that appeared in a newspaper about which I had absolutely no idea, I think is absolutely ludicrous.
I don't mean lunch — that would be a ludicrous thing for a restaurant critic to say — but Lunch: that full-throated, gloves-off, indiscretion-encouraging, untowardness-enabling, calorie-denying, third-martini-ordering, cheeseboard-diving, daylight-losing, trouser-loosening hallelujah of a meal.
He said it was a "ludicrous thing", but he had noticed that the Eastleigh News was running a recording of Mrs May's controversial speech to the Conservative Party conference - in which she claimed an illegal immigrant had avoided deportation because he had a pet cat - alongside a recording of a similar speech by Mr Farage.
He will do ludicrous things to taste something new, or in this case something very old.
But our news, movies, and literature would have us believe that setting boundaries is a dangerous, ludicrous and useless thing to do.
