Well, if you really like him/her then it's not all that bad. But the thing is... if one of your parents found out they could easily talk about it with eachother. (I personally think that would be embarrasing.)
The opposite of a good idea would be a bad idea. Depending on how bad you could also say terrible idea.
an idea that is not good it is bad you shouldn't do it no matter what
bad neighbor
it is a bad idea if it`s causing distraction but good idea if you are using it to enhance your knowledge.
Some Good Idea Bad Idea quotes are "It is not a bad idea to occasionally spend a little time thinking about things you take for granted. Plain everyday things". or Minimum sales prices for alcohol are startlingly bad idea. As with excise duties, the effects are regressive".
As with today, many the younger generation that it was a good idea, the old guard (the older generation) thought it was a bad idea.
It is usually not a bad idea.
an oil spill is a bad idea, have you seen what happened in the gulf of mexico!
No, if you have got best friends! school is a bad idea but it is good for learning.
*A bad idea *A pretty good way to make sure you never get another loan.
Personal choice, there really isn't any good or bad to it.
They are recycled into other materials or products and it's a good idea