Antonyms of horror :
affection, blessing, enjoyment, joy, appreciation, delight, esteem, satisfaction, approval, desire, gratification, treat, benefit, agreeableness, delightfulness, pleasantness, pleasurableness, allurement, appeal, attraction, attractiveness, desirability, desirableness, diversion, entertainment, fun, pleasure, recreation, lark, picnic, riot, heaven, paradise, vision, aplomb, assurance, boldness, confidence, self-assurance, self-confidence, bravery, courage, courageousness, daring, dauntlessness, doughtiness, fearlessness, fortitude, gallantry, hardihood, intrepidity, intrepidness, stoutness, valor, audacity, guts, nerve, appetite, bent, fancy, favor, fondness, like, liking, love, partiality, penchant, predilection, preference, propensity, relish, shine, taste, use.
Examples of usage:
Oh, horror, horror, horror! "Lady Maude's Mania", George Manville Fenn.
She had not once trusted herself to sleep without the feeling that her first waking thought would be one of horror, as the remembrance of her position came upon her. "Orley Farm", Anthony Trollope.
And presently, gazing with a sick horror that compelled, she saw his face.... "The Bars of Iron", Ethel May Dell.