Walter Montego:I think I have to disagree that 'inexpensive' is the opposite of 'cheap.'

However, you puzzled me with your post.  I know that the prefix in makes words negative, or changes them into their opposites.  Like : Appropriate ---> Inappropriate

But I also know that sometimes, it adds more to the quality of the word instead of changing it into its opposite word.  Like: valuabe ----> Invaluabe which means very much valuable, not cheap.

So I'm not sure which one of the above is true about 'inexpensive.'