Wiktionary
viscerally
adv. 1 Literally, in a manner that affects the viscera or gut. 2 In a visceral manner; in a way that affects one's inner core or produces overwhelming emotions.
WordNet
viscerally
adv. in an unreasoning visceral manner [syn: unreasoningly]
in the viscera; "he is bleeding viscerally"
Usage examples of "viscerally".
I did envy those people who now and then viscerally felt the living presence of the dead just over their shoulder, and felt it so strongly they were consoled.
All of us react more viscerally to the shooting of a law enforcement officer, and we should.