Synonyms of fearfully

2 Syllables
shyly
3 Syllables
timidly, terribly, nervously, shrinkingly, eerily, frightfully, dreadfully, horribly
4 Syllables
tragically, drastically, timorously, staggeringly, disturbingly, diffidently, appallingly
5 Syllables
discouragingly
6 Syllables
apprehensively