Synonyms of impulsively

2 Syllables
rashly
3 Syllables
headily, artlessly, foolishly, hastily
4 Syllables
informally, spontaneously, impetuously, unthinkingly, tumultuously, naturally, unwisely, regardlessly, carelessly
5 Syllables
precipitously, unpreparedly, precipitantly, unaffectedly, unpretentiously
7 Syllables
characteristically, unpremeditatedly, inconsiderately