それは重大な間違いではない。の英語

It isn't a serious mistake.

It's not a serious mistake.

That is not a big deal.

It's not a serious error.

It isn't a serious error.

That is not a mistake.

That is not an exaggeration.

There's no mistake about it.

They think it is wrong.

It counts for little .

That isn't a big deal.

That isn't significant.

That isn't a big problem.

That's not a big problem.

It's not a major problem.

It isn't a major problem.

It is by no means certain.

That doesn't really make sense.

That hardly mattered.

It is not a rude meaning.

That is not an exaggeration.

It's not worth making an issue out of it.

It is hard to scatter that.

That is hard to disperse.

That really doesn't have any meaning.

There really isn't a point to that.

a state of being far from that extent

That is not a big deal.

That is not significant.

That is not something to be surprised about.