Synonyms of greatly

1 Syllable

most, much

2 Syllables

highly, vastly, dearly, indeed, amply, strongly

3 Syllables

hugely, mightily, famously, glaringly, woefully, lavishly, plenteously, signally, patently, gloriously, strikingly, frightfully, profoundly, terribly, largely, solidly, notably, markedly, robustly, sturdily, sorely, horribly

4 Syllables

enormously, immensely, incredibly, tremendously, abundantly, exceedingly, intensely, powerfully, surpassingly, distressfully, heartbrokenly, extremely, plentifully, capaciously, conspicuously, eminently, remarkably, supremely, manifestly, noticeably, prominently, creditably, illustriously, appreciably, drastically, staggeringly, outstandingly, invincibly, reputably, luxuriantly, securely, disturbingly

5 Syllables

immeasurably, emphatically, incalculably, incomparably, inimitably, advantageously, extensively, magnanimously, infinitely, desperately, exorbitantly, unconscionably, considerably, discouragingly, indispensably, exceptionally, astonishingly

6 Syllables

superlatively, exaggeratedly