leave the faith
- apostasyRenunciation of former beliefs
- backslideRevert to bad habits
- renounceFormally give up
- abandonLeave behind permanently
- heresyBelief opposing official doctrine
doubt · disbelief · falling away · lapsed · deconversion · exodus · unbeliever · forsake · stray · wandering · lost · prodigal · defect · reject · questioning · crisis · disillusion · secular