heedlessly (adv.)
- airily
- anyhow
- apathetically
- carelessly
- casually
- clumsily
- cursorily
- desperately
- disinterestedly
- dispassionately
- forgetfully
- furiously
- haphazardly
- hastily
- headfirst
- headlong
- helter-skelter
- hurriedly
- impetuously
- inadvertently
- inattentively
- inconsiderately
- involuntarily
- lackadaisically
- listlessly
- madly
- messily
- mindlessly
- negligently
- nonchalantly
- offhand
- offhandedly
- perfunctorily
- precipitately
- precipitously
- promiscuously
- recklessly
- slam-bang
- slap-bang
- slapdash
- sloppily
- tactlessly
- thoughtlessly
- unadvisedly
- unconcernedly
- unhelpfully
- unintentionally
- unmindfully
- unreasoningly
- unthinkingly
- unwarily
- wantonly
- wildly