- Pentecostal⇄adj. 1. of or having to do with Pentecost.
2. of or having to do with any of various American Protestant religious groups that stress divine inspiration and believe in such manifestations of the Holy Ghost as divine healing, speaking in tongues (g - Pentecostal⇄noun Pentecostalist.
- Pentecostal⇄Pentecostal orpentecostal, adjective, noun.