Guileless
From BiblePortal Wikipedia
Guileless [1]
1: ἄδολος (Strong'S #97 Adjective adolos ad'-ol-os )
"without guile" (a, negative, and dolos, see Guile), "pure, unadulterated," is used metaphorically of the teaching of the Word of God, 1 Peter 2:2 , Rv. It is used in the papyri writings of seed, corn, wheat, oil, wine, etc.
2: ἄκακος (Strong'S #172 Adjective akakos ak'-ak-os )
lit., "without evil" (a, negative, kakos, "evil"), signifies "simple, guileless," Romans 16:18 , "simple," of believers (perhaps = unsuspecting, or, rather, innocent, free from admixture of evil); in Hebrews 7:26 , Rv, "guileless" (Av, "harmless"), the character of Christ (more lit., "free from evil"). Cp. Sept., Job 2:3; 8:20; Proverbs 1:4; 14:15 . See Harmless.