Impressive...
jiggly
nervous
cool fun amazing
overwhelming, outrageous, outstanding
liberty
Littlest is a synonym for smallest. It begins with the letter L.
Lovely is a synonym for attractive. It begins with the letter L.
It is a synonym for awesome
awesome
Check an online thesaurus (like thesaurus.com) using Control-F (Find) key (spacebar-k).
Overwhelming is a synonym for awesome. It begins with O.
There is no synonym for awesome beginning with the letter x.