There are hundreds of synonyms for the word “jumbo”. It can be a wide-body airplane, a giant, or a large-shaped guitar. This list contains 870(!) synonyms for “jumbo”.
As an adjective or adverb, “jumbo” can mean significantly big or large in degree, size, value, or amount.
As a noun, “jumbo” can refer to the biggest or largest serving of things, or something or someone that is abnormally powerful or large.
So let’s look at other words for jumbo as an adjective or adverb, meaning significantly big or large in degree, size, value, or amount (US spelling):
A: astronomic, astronomical, almighty, ample, abundant, appreciable, a whale of a, abdominous, aberrant, aberrated, abnormal, above average, abysmal, across the board, across-the-board, acute, adequate, adipose, advantageous, airy, alive with, all-embracing, all-encompassing, all-inclusive, alpine, altitudinous, amaranthine, amazing, ambitious, an incalculable number of, an infinite number of, anomalous, arduous, ascending, astonishing, astounding, atypical, august, awash, awe-inspiring, awesome, awful, awkward
B: bulky, big, Brobdingnagian, Bunyanesque, biggish, behemoth, boundless, blimp, broad, boxcar, behemothic, burly, barn door, bountiful, back-breaking, backbreaking, baronial, beamy, beefy, beer-bellied, beyond measure, bigger than life, blanket, bloated, blubbery, bonny, bottomless, bounteous, bovine, brawny, breathtaking, brilliant, brimming, broad in the beam, broad-shouldered, bruising, buff, built, bulbous, bulging, bull, burdensome, butterball, buxom
C: colossal, cosmic, cosmical, cyclopean, considerable, capacious, comprehensive, cumbersome, copious, commodious, complete, cumbrous, conclusive, Cyclopean, cracking, capricious, catholic, cavelike, cavernous, central, chambered, chancy, chasmal, chock-full, chubby, chunky, classic, clinically obese, comfortable, competitive, comprising, consequential, constant, corpulent, countless, courageous, crawling with, critical, cross-disciplinary, crowded, crucial, crushing
D: dirty great, darn great, decent-sized, decent, decisive, daunting, decided, deep, demanding, dense, detailed, devastating, difficult, dilatable, disproportionate, distended, distensible, dreadful, dumpy, dynamic
E: enormous, elephantine, epic, extensive, expansive, extraordinary, extra-large, excessive, extreme, extravagant, exorbitant, extremely large, emphatic, extremely big, endless, eternal, earth-shattering, earthshaking, economy size, economy-size, economy-sized, elephantic, elevated, eminent, enceinte, enduring, entire, erratic, escalated, especial, essential, everlasting, exacting, exalted, exceeding, excellent, exceptional, exciting, exhausting, exhaustive, expandable, expanded, expectant, extended, extortionate, extra-large, extra special, extraordinaire, eye-opening
F: fantastic, formidable, full, fat, Falstaffian, fabulous, fair-size, fair-sized, fairly large, family-size, family-sized, far down, far-reaching, far-flung, fathomless, fatiguing, fearful, fierce, fine, flabby, fleshy, fluctuant, forceful, freak, fubsy, full-size, fundamental
G: giant, gigantic, gargantuan, great, gross, generous, galactic, gigantesque, grand, ginormous, goodly, grandiose, good, giant-sized, giant-size, good-sized, great big, global, Gargantuan, gallant, gaping, girthy, glorious, good-size, gravid, greater, grueling
H: huge, humongous, heavy, hefty, herculean, heroic, heroical, Himalayan, humungous, hulking, hulky, husky, healthy, high, heavyweight, Homeric, haphazard, hard, harsh, hearty, heavily built, heavy-duty, heavy-laden, heavyset, heightened, hidden, high rise, high-ceilinged, high-cost, high-reaching, high-rise, hit-or-miss, hollow, horizonless, horrific, hunky
I: immense, immeasurable, inordinate, infinite, imposing, impressive, incalculable, interminable, illimitable, iffy, illustrious, immensurable, immoderate, imperial, important, incessant, inclusive, incommodious, incomprehensible, incomputable, inconceivable, increased, incredible, indefinable, indefinite, indescribable, indeterminable, indiscriminate, ineffable, inestimable, inexhaustible, inexpressible, inflated, innumerable, innumerous, intemperate, intense, intensified, intercontinental, interdisciplinary, international, irresistible
J: jumbo-sized, jacked, jacked-up, jelly-belly, jillion, jungly
K: king-size, king-sized, kingly, killing, knackering
L: leviathan, large, largish, limitless, large-scale, long, lavish, lofty, larger-than-life, liberal, laborious, laden, lank, lard, lard-arsed, lardy, large size, larger, latitudinous, lead-footed, leading, legion, lengthy, life-size, loaded, lucrative, lumbering, lumpish, lusty
M: mammoth, massive, mega, monumental, monstrous, monster, mountainous, mighty, major, mastodonic, massy, mondo, magnificent, measureless, man-size, man-sized, memorable, maxi, marked, monolithic, mahoosive, megalithic, Moby, macro, magnific, majestic, manifold, manly, many, marathon, marvelous, mass, mastodontic, material, max, measurable, meaty, mesomorphic, million, mind-blowing, mind-boggling, miraculous, momentous, morbidly obese, more than one can count, moving, multidisciplinary, multiple, multistorey, multitudinous, Mundo, muscled, muscly, muscular, myriad
N: notable, noteworthy, nationwide, never-ending, no end of, no end to, no holds barred, no strings, noble, not inconsiderable, not to be reckoned, not to be sneezed at, noticeable, numberless, numerous
O: oversized, oceanic, outsize, oversize, outsized, oversized, overgrown, overwhelming, of considerable size, outstanding, out-and-out, OS, Olympian, obdurate, obese, odd, of ample build, of ample proportions, ominous, on the plump side, onerous, open, out of the ordinary, out of this world, outspread, outstretched, over the odds, overcoming, overfed, overheavy, overnourished, overstuffed, overweight
P: prodigious, pharaonic, planetary, ponderous, pythonic, plenteous, phenomenal, profuse, plentiful, profitable, powerful, prolific, packed, palatial, paralyzing, paramount, paunchy, peculiar, perdurable, perpetual, pervasive, plump, plumpish, poddy, podgy, porcine, porky, portly, pot-bellied, potbellied, powerfully built, pre-eminent, pressing, preternatural, prevalent, prime, private, profound, prolonged, prominent, pronounced, prosperous, protracted, pudgy, pumped up, pursy
R: respectable, roomy, rip-roaring, roaring, resounding, remarkable, raging, raised, rambling, rangy, rank, rare, reasonable, regal, renowned, replete, rich, ripped, rising, robust, rolling, roly-poly, rotund, round, royal, rugged
S: stupendous, supersize, supersized, super, super-duper, substantial, sizable sizeable, stellar, significant, spacious, staggering, substantive, solid, strapping, super-colossal, serious, super colossal, sensible, superabundant, striking, sweeping, Sisyphean, scopic, copious, searing, sempiternal, sensational, severe, shattering, sinewy, singular, sky-high, sky-scraping, skyscraping, soaring, socking great, sonsy, spacey, spanking, spectacular, splendid, spread out, spread-out, stalwart, stark, stately, statuesque, steep, stiff, stocky, stout, streets ahead, strenuous, stretched-out, strong, stuffed, stunning, sturdily built, sturdy, sufficient, supercalifragilisticexpialidocious, superhuman, superior, superlative, supertemporal, surpassing, swelled, swollen
T: tremendous, titanic, towering, thumping, tidy, terrific, tall, thundering, titan, thorough, taxing, they, thick, thickset, thrashing, through the ceiling, thunderous, toilsome, too good to be true, too many to be counted, tough, towery, tubby
U: unwieldy, unlimited, unmistakable, unqualified, ultra, umpteen, unbelievable, unbelievable, unbounded, incalculable, unceasing, uncertain, uncommon, uncountable, uncounted, uncrowded, uncustomary, undefined, undreamed of, unending, unexclusive, unexpressed, unfathomable, unfathomed, unfixed, unflagging, unforeseeable, unforeseen, ungainly, unhandy, unheard of, unimaginable, unique, universal, unkempt, unknown, unmanageable, unmanoeuvrable, unmeasurable, unmitigated, unnumberable, unnumbered, unparalleled, unprecedented, unpredictable, unreasonable, unreckonable, unrestricted, unspeakable, unsummed, unthinkable, untidy, untold, unusual, unusually good, unutterable, unwonted, uphill, upholstered, uplifted, upraised, urgent, utmost
V: vast, vasty, voluminous, very great, very deep, very long, vigorous, vital
W: whopping, whopper, weighty, whacking, walloping, wide, whale of a, whaling, wall to wall, wearisome, wearying, well-covered, well-fed, well-muscled, well-padded, well-upholstered, well-built, whalelike, whimsical, whole, wholesale, wide open, wide physically, wide-open, wide-ranging, wide-reaching, widespread, without end, without limit, without number, wonderful, wondrous, worldwide
Y: yawning
Z: zillion