It means something is blown out of proportion or something's really incorrect.
"Your paper looks ridiculous because you wrote microscopic!"
It was ridiculous that my brother has 6 toes.
concordance is such a weird word it's ridiculous
He killed the man with such barbarity, it was ridiculous.
Daft means to be silly or foolish and ridiculous. A good sentence would be, she started asking very daft questions to the teacher.
It's a ridiculous hair cut and he wants a refund.It's a ridiculous argument and no one will win.Her story is ridiculous and I don't believe it.It's a ridiculous price but he bought it anyway.
Pigs don't fly, that is absolutely ridiculous."Absolutely, you can count on me!"
that was just outright ridiculous.
You just did use the word colonize in a sentence.
Since that is not a word I would not attempt to use it in a sentence.
Your ridiculous explanation leaves me unvexed.
how would you use the word finished in a command sentence
The word refers to something foolish or ridiculous. It can also imply something that is a giant waste of time. "It would be folly to try to memorize the entire textbook-- nobody has ever done it!"