Definition of extraordinary :
1. Beyond or out of the common order or method; not usual, customary, regular, or ordinary; as, extraordinary evils; extraordinary remedies.
2. Employed or sent upon an unusual or special service; as, an ambassador extraordinary.
3. Exceeding the common degree, measure. or condition; hence, remarkable; uncommon; rare; wonderful; as, extraordinary talents or grandeur.
4. That which is extraordinary; - used especially in the plural; as, extraordinaries excepted, there is nothing to prevent success.
wicked, quaint, ungodly, sinful, awesome, over-the-top, tremendous, ridiculous, great, bonzer, howling, wondrous, usual, better, special, unmatched, marvellous, preposterous, out of sight, rattling, exceeding, some, iniquitous, surpassing, one, immoderate, unholy, droll, grotesque, olympian, ludicrous, comical, preeminent, laughable, standout, wonderworking, terrific, pyrotechnic, frightful, prodigious, towering, whimsical, magnificent, crotchety, preternatural
exceptional (part of speech: adjective)
unusual (part of speech: adjective)
nonconforming (part of speech: adjective)
freakish, quirky, curious, idiosyncratic, uncustomary, bizarre, unusual, different, incongruous, inconsistent, unconventional, funny, aberrant, un-ordinary, odd, divergent, off, crosspatch, crazy, misfit, deviant, outlandish, atypical, oddball, singular, novel, fey, uncommon, deranged, oddity, queer, incompatible, anomalous, improper, mismatch, strange, eccentric, nonconforming, out of the ordinary, untypical, erratic, unique, exceptional, abnormal, peculiar, irregular, unfamiliar
- Well, the least I can say of it is that it is very extraordinary! - "Christian's Mistake", Dinah Maria Mulock Craik.
- It is extraordinary, however, how soon she saw her way clear, and on how small a knowledge. - "The Life and Death of Richard Yea-and-Nay", Maurice Hewlett.
- It's a most extraordinary thing, he replied, that the only person I don't want to laugh at me must do it. - "Carnival", Compton Mackenzie.