in·stinct (noun) \ˈin-ˌstiŋ(k)t\
instinctively (adverb)
1. Natural behavior that is guided by strong feeling; actions you do not think about.
My cat has such a strong hunting instinct―she is always catching birds, even though we give her plenty of food!
I instinctively knew that he was lying.
When the child ran into the road, Michael instinctively swerved his car to the right.
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