Synonyms of deeply

2 Syllables
highly, sadly, tightly
3 Syllables
surely, feelingly, gravely, mournfully, movingly, seriously, thoroughly, profoundly
4 Syllables
genuinely, affectingly, distressingly, intensely, severely, acutely, sincerely
5 Syllables
astonishingly, passionately, indispensably, wholeheartedly
6 Syllables
exaggeratedly