Very great
Very great, enormous, colossal, prodigious, monumental, vast, giant, epic, titanic, towering, king-size, Herculean, substantial, whopping great, thumping great, astronomic, monster, jumbo, bumper, whacking great, very loud, ear-splitting, booming, thunderous, resounding, huge, immense, massive, stupendous, mammoth, gigantic, mighty, monstrous, cosmic, king-sized, gargantuan, Brobdingnagian, whopping, thumping, astronomical, mega, humongous, hulking, whacking, ginormous, deafening, ear-piercing, thundering, roaring, and crashing.
Excellent
Excellent, marvellous, superb, glorious, lovely, first-class, outstanding, perfect, great, amazeballs, terrific, sensational, heavenly, gorgeous, grand, fab, fantabulous, magic, crack, mean, wicked, crucial, far out, sound, marvy, dope, phat, brill, bosting, dandy, neat, boss, rad, bully, bodacious, on fleek, bonzer, lank, divine, champion, corking, cracking, top-hole, beezer, keen, wonderful, magnificent, splendid, sublime, delightful, first-rate, consummate, super, amazing, fantastic, phenomenal, incredible, stellar, dreamy, fabulous, fabby, awesome, ace, cool, bad, mega, mind-blowing, A1, out of this world, spanking, def, brilliant, smashing, peachy, jim-dandy, badass, radical, boffo, bitching, crackerjack, beaut, kif, groovy, capital, wizard, ripping, spiffing, topping, swell, and goodly.
Example Sentences of Tremendous
The tremendous effort yielded remarkable success.
Her tremendous dedication inspired countless people.
A tremendous storm approached the coastline.
His tremendous talent won widespread acclaim.