Anticlimactical

"Well, that was kind of anticlimactical." Hermione stepped back and looked at him with bewilderment, "It was what?" she asked, for the first time at a loss for words. "An-ti-cli-mac-ti-cal; Anticlimactical." Fred replied, a mischievous smile on his face. Hermione swatted him on the arm with a laugh, "Fred, that's not a word. You can't conjugate anticlimactic."