Synonyms of enduringly

2 Syllables
calmly, meekly, stably, quietly, firmly
3 Syllables
bravely, durably, lastingly, finally, patiently, forever
4 Syllables
permanently, immortally, forbearingly, resignedly, unshakeably, tolerantly
5 Syllables
irrevocably, impassively, imperturbably, submissively
6 Syllables
dispassionately