Similar word to aflutter:
aflutter, afraid, aghast, agitated, anxious, chicken, chickenhearted, diffident, discomposed, disquieted, disturbed, fainthearted, frightened, goose-bumpy, have cold feet, hesitant, in a dither, intimidated, jittery, jumpy, lily-livered, mousy, nerveless, nervous, n
aflutter, afraid, aghast, agitated, anxious, chicken, chickenhearted, diffident, discomposed, disquieted, disturbed, fainthearted, frightened, goose-bumpy, have cold feet, hesitant, in a dither, intimidated, jittery, jumpy, lily-livered, mousy, nerveless, nervous, n