Extraordinary means beyond (outside) the ordinary, with synonyms such as amazing, astounding, phenomenal, superior, and many others.
Examples:
It was extraordinary luck that he passed the test with such a high score.
Arresting the mayor was an extraordinary act by the district attorney.
extraordinary in excellence
An extraordinary expense would be one that is unusual and extravagant. It is something that you normally would not buy.
Something that is out of the ordinary. Cool, awesome, sweet, wicked, excellent, unbelievable, extraordinary.
a legendary hero is a person who was brave and remarkable; extraordinary, well-known; famous
Believable is most likely to be the definition of credible.
Remarkable... Here is a decent definition; Worthy of being remarked or noticed; noticeable; conspicuous; hence, uncommon; extraordinary. :)
Astonishingly means in a surprising or impressive manner, usually evoking awe or wonderment. It denotes something extraordinary or remarkable beyond expectation.
That's an extraordinary claim! He had extraordinary powers of persuasion.
there is no suffix in extraordinary....
The Extraordinary was created in 1993.
The Extraordinary ended in 1996.
ExtraOrdinary was created in 2006.