(adv.) In an involuntary manner; not voluntarily; not intentionally or willingly.

automatically blindly by reflex carelessly compulsively heedlessly inadvertently inconsiderately indeliberately instinctively malgre soi mechanically reflexively thoughtlessly unadvisedly uncalculatedly unconsciously under compulsion undesignedly unexpectedly unintentionally unpremeditatedly unreasoningly unthinkingly unthoughtfully unwillingly unwittingly without design without premeditation without willing