The Collaborative International Dictionary
Experientialist
Experientialist \Ex*pe`ri*en"tial*ist\ ([e^]ks*p[=e]`r[i^]*[e^]n"shal*[i^]st), n. One who accepts the doctrine of experientialism. Also used adjectively.
Wiktionary
experientialist
n. A proponent of experientialism.