monument
masterpiece
feat
effort
exploit
masterstroke
ultima Thule
gold star
feather in one's cap
hit one out of the ballpark
overaccomplishment
performance
exemplative
roaring success
boffo
heavyweight
accomplishment
snazztastic
romping good
marvellously
dench
cordon bleu
blue ribbon
hyperachievement
superbo
awesome
formidable
fine and dandy
win
skookum
tour de force
hole in one
stupendous
corporealization
wondrous
bright
nang
barnburner
imposingly
pièce de résistance
magnificence
impressively
stonkingly
standout
master class
accomplished fact
gee whiz
brillo
eclatant
fait accompli