Lexical Definition

‎ἄπταιστος‎ áptaistos (ap-tah'-ee-stos) without falling G:A
from ‎Α‎ (as a negative particle) and a derivative of ‎πταίω‎

from falling.

Usage: 1 form in 1 verse
Form Translated As     In Verse(s)
ἀπταίστουσ from stumbling Jude.1.24

Abbott-Smith

** ἄ-πταιστος, -ον (< πταίω), [in LXX: III Mac 6:39*;]
without stumbling, sure-footed: metaph. (MM, s.v.), Ju 24.†

Abbott-Smith References

Book Refs
Jude 1:24

Liddell-Scott-Jones

ἄπταιστος, ον,

not stumbling, ἀπταιστστερον παρέχειν τὸν ἵππον make a horse less aptto stumble, [Refs 5th c.BC+]; infallible, [Refs 2nd c.AD+]. adverb -τως[Refs 5th c.BC+]; inevitably, [Refs 2nd c.AD+]: comparative -ότερον with greater precision, [Refs 2nd c.AD+]:—also ἀπρο-τί, [Refs 2nd c.AD+]

__2 intact, [Refs 1st c.AD+]
__II not causing to stumble, giving a good footing, λεία καὶ . ὁδός[Refs 1st c.BC+]