Synonyms of gradually

2 Syllables
gently, slowly, hardly, scantly, softly
3 Syllables
listlessly, steadily, haltingly, piecemeal, sluggishly, constantly, laggardly, torpidly, serially
4 Syllables
unhurriedly, perceptibly, detectably, regularly, indolently, lingeringly, increasingly, sequentially, continuously, composedly
5 Syllables
lethargically, imperceptibly, inactively, successively, progressively, moderately
6 Syllables
deliberately