Antonyms of terrific:
pleasurable, undignified, pathetic, lousy, middling, agreeable, mediocre, rotten, pleasing, contemptible, delectable, delightful, beggarly, lowly, unalarming, second class, bad, substandard, paltry, soothing, mild, wretched, execrable, poor, base, low-grade, cheering, humble, atrocious, attractive, terrible, enjoyable, commonplace, satisfying, delicious, ordinary, vulgar, appealing, inviting, enticing, vile, inferior, mean, welcome, unsatisfactory, despicable, awful, pleasant, comforting, second-rate.
Examples of usage for terrific:
— The Pacha of Many Tales, Captain Frederick Marryat.
— The Safety Curtain, and Other Stories, Ethel M. Dell.The heat was terrific