overwhelming, outrageous, outstanding
If you are referring to the great as in big, there is enormous, enlarged. If you are referring to the great as in good, there is excellent, exceptional.
junky
on call
foe
myth
Overwhelming is a synonym for awesome. It begins with O.
jiggly
nervous
Impressive...
cool fun amazing
Obliging is a synonym for obedient. It begins with O.
Observation.
awesome
It is a synonym for awesome
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There is no synonym for awesome beginning with the letter x.
If you are referring to the great as in big, there is enormous, enlarged. If you are referring to the great as in good, there is excellent, exceptional.