Vine's Expository Dictionary: View Entry
TDNT Reference: 9:220,1277
ἄφρων áphrōn, af'-rone; from G1 (as a negative particle) and G5424; properly, mindless, i.e. stupid, (by implication) ignorant, (specially) egotistic, (practically) rash, or (morally) unbelieving:—fool(-ish), unwise.
The KJV translates Strong's G878 in the following manner: fool (8x), foolish (2x), unwise (1x).
without reason
senseless, foolish, stupid
without reflection or intelligence, acting rashly
Strong's Number G878 matches the Greek ἄφρων (aphrōn),
which occurs 11 times in 10 verses
in the TR Greek.
View OT results in the LXX Greek concordance
View NT results in the MGNT Greek concordance