Instinctively

(adv.) In an instinctive manner; by force of instinct; by natural impulse.

Thesaurus Entries

anally, automatically, blindly, by reflex, compellingly, complaisantly, compliantly, compulsorily, conformably, conformingly, conventionally, flexibly, imperatively, imperiously, instinctively, involuntarily, malleably, mechanically, obediently, pedantically, pliantly, reflexively, submissively, traditionally, unconsciously, unintentionally, unthinkingly, unwillingly, unwittingly, yieldingly