cannot be spoken against

Strong’s Dictionary of Greek Words:

Greek:
ἀναντίῤῥητος
Transliteration:
anantirrhetos
Phonic:
an-an-tir’-hray-tos
Meaning:
from 1 (as a negative particle) and a presumed derivative of a compound of 473 and 4483; indisputable
KJV Usage:
cannot be spoken against