Splendiferous / splen-dif-er-uh s / Adjective
Splendid; magnificent; fine.
…Alfred told her to go and have a lie-down, she deserved it after this splendiferous dinner, she and I would manage the dishes.
— Alice Munro, “Family Furnishings,” Hateship, Friendship, Courtship, Loveship, Marriage, 2001
Splendiferous comes from the Late Latin term splendōrifer meaning “brightness-bearing.”