Lexical Definition

‎ἀκατάγνωστος‎ akatágnōstos (ak-at-ag'-noce-tos) beyond reproach ^G:A
from ‎Α‎ (as a negative particle) and a derivative of ‎καταγινώσκω‎

that cannot be condemned.

• unblamable

Abbott-Smith

**† ἀ-κατά-γνωστος, -ον (< καταγινώσκω), [in LXX: II Mac 4:47 ;]
not open to just rebuke, irreprehensible: Tit 2:8 (v. Cremer, 676; and for other exx., MM, VGT, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀκατάγνωστος, ον,

not to be condemned, [LXX+NT+3rd c.AD+]adverb -τως unexceptionably, λογιστεύσας[Refs 3rd c.AD+]

_{LSJ Scripture Refs: Titus.2.8}